P&I diagram piping and instrument diagram
【化】 管道支架
piping support
暂无补充释义。
piping support
暂无补充释义。
P&I diagram piping and instrument diagram
piping
piping system
piping
airtight test for refrigerant piping system【制冷】
vacuum test for refrigerant piping system【制冷】
buried piping
common venting piping system【水运】