灵鹊做题网法兰l连接翻译 with slipped flanges and bellows-tangent flared
法兰l连接翻译 with slipped flanges and bellows-tangent flared
standard flanges是什么法兰?
法兰中 CLASS 150 FLANGES,CLASS 300 FLANGES
pin bellows怎么翻译
m.s.flanges是什么法兰啊?
求翻译:Find the equation of the tangent and the normal respecti
无缝钢管法兰连接怎么计算法兰个数
翻译The boy slipped out of the room and headed for the swimmin
waste gas is flared or vented 怎么翻译?
flared gas
弯头法兰怎么翻译,
ppr法兰片与金属法兰如何连接?