甲基恶唑环检测标准

CNAS认证

CNAS认证

CMA认证

CMA认证

GB/T 39993-2021

化妆品中限用防腐剂二甲基噁唑烷、7-乙基双环噁唑烷和5-溴-5-硝基-1,3-二噁烷的测定

Determination of permitted preservatives dimethyl oxazolidine, 7-ethylbicyclooxazolidine and 5-bromo-5-nitro-1,3-dioxane in cosmetics

  • 【发布单位或类别】 CN-GB国家标准
  • 【发布日期】2021-04-30
  • 【CCS分类】Y42化妆品
  • 【ICS分类】71.100.70美容品、化妆品

32015D1873

Council Implementing Decision (EU) 2015/1873 of 8 October 2015 on subjecting 4-methyl-5-(4-methylphenyl)-4,5-dihydrooxazol-2-amine (4,4′-DMAR) and 1-cyclohexyl-4-(1,2-diphenylethyl)piperazine (MT-45) to control measures

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2015-10-08
  • 【CCS分类】G16基本有机化工原料
  • 【ICS分类】65.100.01杀虫剂和其他农用化工产品综合

T/ZNX 008-2021

40%甲基硫菌灵·三环唑悬浮剂

  • 【发布单位或类别】 CN-TUANTI团体标准
  • 【发布日期】2021-01-07
  • 【CCS分类】G25农药
  • 【ICS分类】65.100.30杀真菌剂

32017R0841

Commission Implementing Regulation (EU) 2017/841 of 17 May 2017 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances alpha-cypermethrin, Ampelomyces quisqualis strain: aq 10, benalaxyl, bentazone, bifenazate, bromoxynil, carfentrazone ethyl, chlorpropham, cyazofamid, desmedipham, diquat, DPX KE 459 (flupyrsulfuron-methyl), etoxazole, famoxadone, fenamidone, flumioxazine, foram

Commission Implementing Regulation (EU) 2017/841 of 17 May 2017 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances alpha-cypermethrin, Ampelomyces quisqualis strain: aq 10, benalaxyl, bentazone, bifenazate, bromoxynil, carfentrazone ethyl, chlorpropham, cyazofamid, desmedipham, diquat, DPX KE 459 (flupyrsulfuron-methyl), etoxazole, famoxadone, fenamidone, flumioxazine, foram

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2017-05-17
  • 【CCS分类】A20综合技术
  • 【ICS分类】31.020电子元器件综合

32007L0027R(01)

Corrigendum to Commission Directive 2007/27/EC of 15 May 2007 amending certain Annexes to Council Directives 86/362/EEC, 86/363/EEC and 90/642/EEC as regards maximum residue levels for etoxazole, indoxacarb, mesosulfuron, 1-methylcyclopropene, MCPA and MCPB, tolyfluanid and triticonazole ( OJ L 128, 16.5.2007 )

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2007-06-01
  • 【CCS分类】G15/19有机化工原料
  • 【ICS分类】67.050食品试验和分析的一般方法

32018R1266

Commission Implementing Regulation (EU) 2018/1266 of 20 September 2018 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances 1-decanol, 6-benzyladenine, aluminium sulfate, azadirachtin, bupirimate, carboxin, clethodim, cycloxydim, dazomet, diclofop, dithianon, dodine, fenazaquin, fluometuron, flutriafol, hexythiazox, hymexazol, indolylbutyric acid, isoxaben, lime sulphur, metal

Commission Implementing Regulation (EU) 2018/1266 of 20 September 2018 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances 1-decanol, 6-benzyladenine, aluminium sulfate, azadirachtin, bupirimate, carboxin, clethodim, cycloxydim, dazomet, diclofop, dithianon, dodine, fenazaquin, fluometuron, flutriafol, hexythiazox, hymexazol, indolylbutyric acid, isoxaben, lime sulphur, metal

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2018-09-20
  • 【CCS分类】X00/09食品综合
  • 【ICS分类】67.050食品试验和分析的一般方法

32018R1796

Commission Implementing Regulation (EU) 2018/1796 of 20 November 2018 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances amidosulfuron, bifenox, chlorpyrifos, chlorpyrifos-methyl, clofentezine, dicamba, difenoconazole, diflubenzuron, diflufenican, dimoxystrobin, fenoxaprop-p, fenpropidin, lenacil, mancozeb, mecoprop-p, metiram, nicosulfuron, oxamyl, picloram, pyraclostrobin

Commission Implementing Regulation (EU) 2018/1796 of 20 November 2018 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances amidosulfuron, bifenox, chlorpyrifos, chlorpyrifos-methyl, clofentezine, dicamba, difenoconazole, diflubenzuron, diflufenican, dimoxystrobin, fenoxaprop-p, fenpropidin, lenacil, mancozeb, mecoprop-p, metiram, nicosulfuron, oxamyl, picloram, pyraclostrobin

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2018-11-20
  • 【CCS分类】Z00/09环境保护综合
  • 【ICS分类】65.100杀虫剂和其他农用化工产品

32015R0845

Commission Regulation (EU) 2015/845 of 27 May 2015 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for azoxystrobin, chlorantraniliprole, cyantraniliprole, dicamba, difenoconazole, fenpyroximate, fludioxonil, glufosinate-ammonium, imazapic, imazapyr, indoxacarb, isoxaflutole, mandipropamid, penthiopyrad, propiconazole, pyrimethanil, spirotetramat and trinex

Commission Regulation (EU) 2015/845 of 27 May 2015 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for azoxystrobin, chlorantraniliprole, cyantraniliprole, dicamba, difenoconazole, fenpyroximate, fludioxonil, glufosinate-ammonium, imazapic, imazapyr, indoxacarb, isoxaflutole, mandipropamid, penthiopyrad, propiconazole, pyrimethanil, spirotetramat and trinex

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2015-05-27
  • 【CCS分类】Z00/09环境保护综合
  • 【ICS分类】67.040食品综合

32007L0027

Commission Directive 2007/27/EC of 15 May 2007 amending certain Annexes to Council Directives 86/362/EEC, 86/363/EEC and 90/642/EEC as regards maximum residue levels for etoxazole, indoxacarb, mesosulfuron, 1-methylcyclopropene, MCPA and MCPB, tolylfluanid and triticonazole (Text with EEA relevance)

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2007-05-15
  • 【CCS分类】A00标准化、质量管理
  • 【ICS分类】65.100.01杀虫剂和其他农用化工产品综合

32018R0917

Commission Implementing Regulation (EU) 2018/917 of 27 June 2018 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances alpha-cypermethrin, beflubutamid, benalaxyl, benthiavalicarb, bifenazate, boscalid, bromoxynil, captan, carvone, chlorpropham, cyazofamid, desmedipham, dimethoate, dimethomorph, diquat, ethephon, ethoprophos, etoxazole, famoxadone, fenamidone, fenamiphos, flumi

Commission Implementing Regulation (EU) 2018/917 of 27 June 2018 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances alpha-cypermethrin, beflubutamid, benalaxyl, benthiavalicarb, bifenazate, boscalid, bromoxynil, captan, carvone, chlorpropham, cyazofamid, desmedipham, dimethoate, dimethomorph, diquat, ethephon, ethoprophos, etoxazole, famoxadone, fenamidone, fenamiphos, flumi

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2018-06-27
  • 【CCS分类】Z00/09环境保护综合
  • 【ICS分类】67.050食品试验和分析的一般方法

32016R0950

Commission Implementing Regulation (EU) 2016/950 of 15 June 2016 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances 2,4-DB, beta-cyfluthrin, carfentrazone ethyl, Coniothyrium minitans Strain CON/M/91-08 (DSM 9660), cyazofamid, deltamethrin, dimethenamid-P, ethofumesate, fenamidone, flufenacet, flurtamone, foramsulfuron, fosthiazate, imazamox, iodosulfuron, iprodione, isoxafl

Commission Implementing Regulation (EU) 2016/950 of 15 June 2016 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances 2,4-DB, beta-cyfluthrin, carfentrazone ethyl, Coniothyrium minitans Strain CON/M/91-08 (DSM 9660), cyazofamid, deltamethrin, dimethenamid-P, ethofumesate, fenamidone, flufenacet, flurtamone, foramsulfuron, fosthiazate, imazamox, iodosulfuron, iprodione, isoxafl

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2016-06-15
  • 【CCS分类】X00/09食品综合
  • 【ICS分类】67.050食品试验和分析的一般方法

32017R0841R(01)

Corrigendum to Commission Implementing Regulation (EU) 2017/841 of 17 May 2017 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances alpha-cypermethrin, Ampelomyces quisqualis strain: aq 10, benalaxyl, bentazone, bifenazate, bromoxynil, carfentrazone ethyl, chlorpropham, cyazofamid, desmedipham, diquat, DPX KE 459 (flupyrsulfuron-methyl), etoxazole, famoxadone, fenamidone, flum

Corrigendum to Commission Implementing Regulation (EU) 2017/841 of 17 May 2017 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances alpha-cypermethrin, Ampelomyces quisqualis strain: aq 10, benalaxyl, bentazone, bifenazate, bromoxynil, carfentrazone ethyl, chlorpropham, cyazofamid, desmedipham, diquat, DPX KE 459 (flupyrsulfuron-methyl), etoxazole, famoxadone, fenamidone, flum

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2018-01-05
  • 【CCS分类】A20综合技术
  • 【ICS分类】31.020电子元器件综合

32009R1050

Commission Regulation (EC) No 1050/2009 of 28 October 2009 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for azoxystrobin, acetamiprid, clomazone, cyflufenamid, emamectin benzoate, famoxadone, fenbutatin oxide, flufenoxuron, fluopicolide, indoxacarb, ioxynil, mepanipyrim, prothioconazole, pyridalyl, thiacloprid and trifloxystrobin in or on certain product

Commission Regulation (EC) No 1050/2009 of 28 October 2009 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for azoxystrobin, acetamiprid, clomazone, cyflufenamid, emamectin benzoate, famoxadone, fenbutatin oxide, flufenoxuron, fluopicolide, indoxacarb, ioxynil, mepanipyrim, prothioconazole, pyridalyl, thiacloprid and trifloxystrobin in or on certain product

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2009-10-28
  • 【CCS分类】B00/09农业、林业综合
  • 【ICS分类】67.040食品综合

32014R0491

Commission Regulation (EU) No 491/2014 of 5 May 2014 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for ametoctradin, azoxystrobin, cycloxydim, cyfluthrin, dinotefuran, fenbuconazole, fenvalerate, fludioxonil, fluopyram, flutriafol, fluxapyroxad, glufosinate-ammonium, imidacloprid, indoxacarb, MCPA, methoxyfenozide, penthiopyrad, spinetoram and trifloxystr

Commission Regulation (EU) No 491/2014 of 5 May 2014 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for ametoctradin, azoxystrobin, cycloxydim, cyfluthrin, dinotefuran, fenbuconazole, fenvalerate, fludioxonil, fluopyram, flutriafol, fluxapyroxad, glufosinate-ammonium, imidacloprid, indoxacarb, MCPA, methoxyfenozide, penthiopyrad, spinetoram and trifloxystr

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2014-05-05
  • 【CCS分类】Z00/09环境保护综合
  • 【ICS分类】67.040食品综合

USP f101471

2,4,5-Trimethyl 8-3-Oxazoline

2,4,5-Trimethyl 8-3-Oxazoline

  • 【发布单位或类别】 UNKNOWN其他未分类
  • 【发布日期】
  • 【CCS分类】有机化工原料
  • 【ICS分类】杀虫剂和其他农用化工产品

32018R0084

Commission Implementing Regulation (EU) 2018/84 of 19 January 2018 amending Implementing Regulation (EU) No 540/2011 as regards the extension of the approval periods of the active substances chlorpyrifos, chlorpyrifos-methyl, clothianidin, copper compounds, dimoxystrobin, mancozeb, mecoprop-p, metiram, oxamyl, pethoxamid, propiconazole, propineb, propyzamide, pyraclostrobin and zoxamide (Text with EEA relevance. )

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2018-01-19
  • 【CCS分类】G15/19基础标准
  • 【ICS分类】65.100食品综合

32009R0822

Commission Regulation (EC) No 822/2009 of 27 August 2009 amending Annexes II, III and IV to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for azoxystrobin, atrazine, chlormequat, cyprodinil, dithiocarbamates, fludioxonil, fluroxypyr, indoxacarb, mandipropamid, potassium tri-iodide, spirotetramat, tetraconazole, and thiram in or on certain products (Text with EEA relevance)

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2009-08-27
  • 【CCS分类】A20/39水产、渔业
  • 【ICS分类】67.040杀虫剂和其他农用化工产品

32018R0070

Commission Regulation (EU) 2018/70 of 16 January 2018 amending Annexes II, III and IV to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for ametoctradin, chlorpyrifos-methyl, cyproconazole, difenoconazole, fluazinam, flutriafol, prohexadione and sodium chloride in or on certain products (Text with EEA relevance. )

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2018-01-16
  • 【CCS分类】B50/59电子元件
  • 【ICS分类】65.100食品综合

32019R0552

Commission Regulation (EU) 2019/552 of 4 April 2019 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for azoxystrobin, bicyclopyrone, chlormequat, cyprodinil, difenoconazole, fenpropimorph, fenpyroximate, fluopyram, fosetyl, isoprothiolane, isopyrazam, oxamyl, prothioconazole, spinetoram, trifloxystrobin and triflumezopyrim in or on certain products (Text wi

Commission Regulation (EU) 2019/552 of 4 April 2019 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for azoxystrobin, bicyclopyrone, chlormequat, cyprodinil, difenoconazole, fenpropimorph, fenpyroximate, fluopyram, fosetyl, isoprothiolane, isopyrazam, oxamyl, prothioconazole, spinetoram, trifloxystrobin and triflumezopyrim in or on certain products (Text wi

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2019-04-04
  • 【CCS分类】L10/34工艺美术品与其他日用品
  • 【ICS分类】67.040食品综合

32013R0834

Commission Regulation (EU) No 834/2013 of 30 August 2013 amending Annexes II and III to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for acequinocyl, bixafen, diazinon, difenoconazole, etoxazole, fenhexamid, fludioxonil, isopyrazam, lambda-cyhalothrin, profenofos and prothioconazole in or on certain products Text with EEA relevance

  • 【发布单位或类别】 IX-EURLEX欧洲技术法规
  • 【发布日期】2013-08-30
  • 【CCS分类】Y85/89
  • 【ICS分类】67.040
甲基恶唑环检测标准 检测标准

相关文章推荐

了解更多检测技术和行业动态

活性炭脱硫剂耐水性测试

活性炭脱硫剂作为一种高效、经济的气体净化材料,广泛应用于化工、环保、能源等领域的脱硫工艺中。其主要原理是利用活性炭发达的孔隙结构和巨大的比表面积,通过物理吸附和化学催化作用,将气体中的硫化氢(H2S)等硫化物脱除。然而,在实际工业应用环境中,由于原料气通常含有一定的水分,或者在脱硫过程中会有水分生成,活性炭脱硫剂的耐水性能成为了衡量其质量和使用寿命的关键指标。如果脱硫剂耐水性差,遇水后容易出现粉化

查看详情 →

敏感性评估慢应变速率试验

敏感性评估慢应变速率试验是一种用于评估金属材料在特定环境条件下应力腐蚀开裂敏感性的重要检测技术。该试验方法通过在极低的应变速率下对试样进行拉伸,模拟材料在实际服役环境中可能遇到的应力状态与环境介质的协同作用,从而准确判断材料的应力腐蚀开裂倾向。

查看详情 →

氨气腐蚀深度测定

氨气腐蚀深度测定是一项专业化的材料腐蚀评价技术,主要用于评估金属材料及其制品在氨气环境中的耐腐蚀性能。氨气作为一种常见的工业气体,广泛应用于制冷、化工、化肥生产等领域,但其对金属材料具有显著的腐蚀作用,能够导致设备性能下降、寿命缩短,甚至引发安全事故。因此,开展氨气腐蚀深度测定对于保障工业设备安全运行具有重要的实际意义。

查看详情 →

海水全浸渍腐蚀电化学测试

海水全浸渍腐蚀电化学测试是一种专门用于评估金属材料在海水环境中耐腐蚀性能的重要检测技术。该测试方法通过将金属试样完全浸渍于海水或人工海水中,利用电化学测量技术对金属的腐蚀行为进行系统性的研究和评价。由于海洋环境具有高盐度、高湿度、生物附着等特殊因素,金属材料在海水中往往会发生严重的腐蚀现象,因此开展海水全浸渍腐蚀电化学测试对于海洋工程材料的选择、防腐设计以及使用寿命预测具有重要的指导意义。

查看详情 →

氩灯老化色差分析

氩灯老化色差分析是一种通过模拟自然环境中阳光辐射、温度和湿度等气候因素,对材料或产品进行加速老化试验,并通过专业仪器测量和分析其颜色变化的专业检测技术。该技术广泛应用于涂料、塑料、纺织品、汽车零部件、建筑材料等领域,是评估材料耐候性能和色牢度的重要手段。

查看详情 →

预应力钢丝疲劳试验

预应力钢丝疲劳试验是评价预应力钢丝在循环载荷作用下抗疲劳性能的重要检测手段。预应力钢丝作为预应力混凝土结构中的关键受力材料,广泛应用于桥梁、建筑、水利等工程领域。在实际使用过程中,预应力钢丝长期承受动态荷载作用,如车辆行驶产生的振动、风荷载、地震作用等,这些循环应力会导致材料内部产生疲劳损伤累积,最终可能引发疲劳断裂,严重威胁工程结构的安全性和耐久性。

查看详情 →

钢丝绳疲劳拉力测试

钢丝绳疲劳拉力测试是材料力学性能检测领域中的重要测试项目之一,主要用于评估钢丝绳在循环载荷作用下的抗疲劳性能和使用寿命。钢丝绳作为一种关键的承载构件,广泛应用于电梯、起重机械、矿山提升设备、桥梁结构、索道等众多领域,其安全可靠性直接关系到设备和人员的生命安全。

查看详情 →

防松螺栓组微动磨损分析

防松螺栓组作为机械连接中至关重要的紧固元件,广泛应用于航空航天、汽车制造、桥梁工程、电力设备等关键领域。在长期服役过程中,由于外部载荷的波动、振动环境的影响以及温度变化等因素,螺栓组连接界面会产生微小的相对位移,这种位移幅度通常在微米级别,被称为微动现象。微动磨损正是在这种微小振幅的往复运动下,接触表面发生的复杂损伤过程,它会导致螺栓预紧力下降、连接刚度降低,严重时甚至引发紧固件疲劳断裂,造成重大

查看详情 →

内毒素截留率检测

内毒素截留率检测是制药、医疗器械及生物制品行业中一项至关重要的质量控制检测项目。内毒素是革兰氏阴性菌细胞壁外膜中的脂多糖成分,当细菌死亡或裂解后会释放到环境中。内毒素具有极强的热原性,即使极微量进入人体血液,也可能引起发热、休克甚至死亡等严重后果。因此,对于注射用药、医疗器械等直接接触血液或体液的产品,必须严格控制内毒素含量。

查看详情 →

扭转强度分析测定

扭转强度分析测定是材料力学性能测试中的重要组成部分,主要用于评估材料或构件在承受扭矩作用时的力学行为和失效特性。扭转强度是指材料在扭转载荷作用下抵抗扭转变形和断裂的能力,这一指标对于轴类零件、紧固件、弹簧以及各类传动部件的设计和选材具有极其重要的指导意义。

查看详情 →

仪器设备

配备国际先进的检测仪器设备,确保检测数据的精确性

气相色谱仪

气相色谱仪

用于分析各种有机化合物,检测精度高,稳定性好。

液相色谱仪

液相色谱仪

适用于分析高沸点、难挥发的有机化合物和生物大分子。

质谱仪

质谱仪

用于物质的定性和定量分析,具有高灵敏度和高分辨率。

原子吸收光谱仪

原子吸收光谱仪

用于测定各种物质中的金属元素含量,检测限低,选择性好。

红外光谱仪

红外光谱仪

用于分析物质的分子结构和化学键,广泛应用于有机化学分析。

X射线衍射仪

X射线衍射仪

用于分析物质的晶体结构,确定物质的组成和结构。

了解我们

大型第三方检测机构,致力于为客户提供准确、可靠的检测分析服务

北检(北京)检测技术研究院

检测优势

我们的专业团队和先进设备为您提供最可靠的检测服务

技术领先

拥有行业领先的检测技术和方法,确保检测结果的准确性。

设备先进

配备国际先进的检测仪器,保证检测数据的可靠性和精确性。

团队专业

拥有经验丰富的专业技术团队,提供全方位的技术支持。

快速高效

标准化检测流程,确保在最短时间内提供准确的检测报告。

合作客户

我们与众多知名企业建立了长期合作关系

客户1
客户2
客户3
客户4
客户5
客户6
客户7
客户8
客户9
客户10

需要专业检测服务?

我们的专业技术团队随时为您提供咨询和服务,欢迎随时联系我们获取详细信息和报价。

全国服务热线:400-625-0567
邮箱:010@yjsyi.com
地址:北京市丰台区航丰路8号院1号楼1层121

在线咨询工程师

有任何检测需求或技术问题?我们的专业工程师团队随时为您提供一对一的咨询服务

立即咨询工程师

工作时间:7*24小时服务

客服头像
我们的专业工程师随时为您提供咨询!