H64Y-P(54)100V/140V/170V 焊接止回阀
H41W铜止回阀
Q41F-16t黄铜法兰球阀
H42W-25P立式止回阀
H42W-100P立式止回阀
H64Y-P(54)100V..
WJ41H-25德标波纹管截止阀