JB/T 7167-2004 凿岩机械与气动工具 焊接件 通用技术条件

JB/T 7167-2004 "JB/T 7167-2004 Rock drilling machinery and pneumatic tools welding parts general technical specification" Translation: "Chinese JB/T 7167-2004, general technical specification for welding parts of rock drilling machinery and pneumatic tools." Note: The original text in Chinese, without specific context, is difficult to provide more detailed information about the content and purpose of the standard. However, based on the information provided above, it can be inferred that the standard is related to the technical requirements for welding parts of rock drilling machinery and pne