不銹鋼焊接截止閥設(shè)計與制造標(biāo)準(zhǔn)：

設(shè)計與制造：GB/T12223-89
焊接尺寸：JB/T?1751-75
結(jié)構(gòu)長度：GB12221
檢驗與實(shí)驗：GB/T13927

Stainless steel welded valve design and manufacturing standards:

Design and manufacture: GB/T12223-89
Weld size: JB / T 1751-75
Structure length: GB12221
Inspection and test: GB/T13927