Home / Standards / GB/T 39937-2021 GB/T 39937-2021 Active Plastics—Extruded sheets of polypropylene (PP)—Requirements and test methods 塑料制品 聚丙烯(PP)挤塑板材 要求和试验方法 Standard Type GBT ICS 83.140.10 CCS G33 Status 现行 Issue Date 2021-03-09 Implementation 2021-10-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A