GB/T 33897-2017
Biopolyester—Polyhydroxyalkanoates(PHA) blowing film
GB/T 33897-2017
GB/T 33897-2017
GB/T 33897-2017
Plastics. Unsaturated polyester resins. Determination of hydroxyl value
GB/T 33897-2017
Plastics — Unsaturated polyester resins — Determination of hydroxyl value
GB/T 33897-2017
Unsaturated polyester resins - Determination of hydroxyl value (ISO 2554:1997)
GB/T 33897-2017
Plastics — Unsaturated polyester resins — Determination of hydroxyl value