GB/T 18743.2-2022热塑性塑料管材简支梁冲击强度的测定第2部分:不同材料管材的试验条件国家标准
英文:Thermoplastics pipes—Determination of pendulum impact strength by the Charpy method—Part 2: Test condition for pipes ...
英文:Thermoplastics pipes—Determination of pendulum impact strength by the Charpy method—Part 2: Test condition for pipes ...