GB/T 38138-2019
Test methods of fiber grade polycaprolactam (PA6) chip
HG/T 6060-2022
FZ/T 51023-2024
GB/T 35157-2017(\u82f1\u6587\u7248)
树脂型合成石板材
20233886-T-469
Determination of caprolactam and oligomer content in chip and fibres of polycaproamide