法兰中 CLASS 150 FLANGES,CLASS 300 FLANGES
法兰中 CLASS 150 FLANGES,CLASS 300 FLANGES
standard flanges是什么法兰?
m.s.flanges是什么法兰啊?
法兰l连接翻译 with slipped flanges and bellows-tangent flared
法兰 class…1-2什么意思
请问Carbon steel Plain Flanges PN-16 RF DIN
class
关于法兰的规格:8" #150 class Weld-neck Flange With Sch 40 bore. SS
英语翻译Fillet welds for flanges or branch pipes with an inside
英语翻译两小段The LP ring carriers are attached by flanges onto the
求翻译,If If the internal area is not fully visible,flanges mus
ASME中class 300怎么读