DNV船籍,排烟管上波纹管膨胀节是什么证书要求?
按规范Pt.4 Ch.6 Sec.2 A 801,表格内写的是试验报告, Pt.4 Ch.6 Sec.6E 300
Expansion joints and bellows302
Expansion joints and bellows are subject to approval for their intended use. The joints and bellows are to be so designed and installed that pulling or blowing out is prevented. 你们都是用的什么证书呢? |