如果P&ID上写tank的沉降是12", 我们在CAESER建膜的 ...? 回复 1# wanghongbecky prior to using the 12" settlement, you should investigate: 1. is it correct? normally tank settlement is much smaller than that 2. elastic or plastic? 3. @ center or @ the edge of tank? 4. after hydrotest or before hydrotest? 5. type of the tank, flating roof or fixed?查看更多