斯蒂芬斯蒂芬斯蒂芬下次vdsdfdew
好好好好好啊好好好.....
多谢分享,2006版的好像是最新版,2011版的太珍贵
多谢分享!
ANSI/MSS SP-55:2011 Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components
好东西,谢谢楼主的无私分享!来看看呢
感谢楼主分享,谢谢了,好东西
找好久的MSS SP-55~~~謝謝分享
请求帮忙
ANSI/MSS SP-55:2011 Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components