Thread and Coupling请大侠指点
国外询单是这样说的:pipemusthaveNPTthreadedends,withcouplingononeendandadequatethreadprotectors...
国外询单是这样说的:
pipe must have NPT threaded ends,with coupling on one end and adequate thread protectors on other end
请问大家是什么意思?? 展开
pipe must have NPT threaded ends,with coupling on one end and adequate thread protectors on other end
请问大家是什么意思?? 展开
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