GB/T 33488.1-2017化工用塑料焊接制承压设备检验方法第1部分:总则国家标准
英文:Test method of pressure equipments of thermoplastics welded for chemicals—Part 1: General requirements GB/T 33488.1-2...
英文:Test method of pressure equipments of thermoplastics welded for chemicals—Part 1: General requirements GB/T 33488.1-2...