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BS 4604-1:1970
Specification for the use of high strength friction grip bolts in structural steelwork. Metric series
被代替
发布日期 :
1970-06-30
实施日期 :
BS 4604-2:1970
Specification for the use of high strength friction grip bolts in structural steelwork. Metric series
被代替
发布日期 :
1970-08-28
实施日期 :