暖暖爱视频免费,国产成人涩涩涩视频在线观看,中文在线中文资源,日本亚洲色大成网站WWW久久


ZH

KR

JP

ES

RU

DE

Cast iron repair welding

Cast iron repair welding, Total:3 items.

In the international standard classification, Cast iron repair welding involves: Manufacturing forming processes, Welding, brazing and soldering.


Group Standards of the People's Republic of China, Cast iron repair welding

Professional Standard - Machinery, Cast iron repair welding

  • JB/T 5710-1991 Heating furnace for repair welding of iron casting. Grading of energy consumption

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Cast iron repair welding





Copyright ?2007-2023 ANTPEDIA, All Rights Reserved