Industrial pipeworks. Forged steel flanges and collars. Materials. Mechanical properties. Fabrication. Tests.

工业管道系统。锻制钢法兰和套圈。材料。机械性能。制造。试验。

youdao

Industrial pipeworks. Forged steel flanges and collars. Materials. Mechanical properties. Fabrication. Tests.

工业管道系统。锻制钢法兰和套圈。材料。机械性能。制造。试验。

youdao