WJ61H-16C-DN15,WJ61H-16C-DN20,WJ61H-16C-DN25,WJ61H-16C-DN32,北京式波纹管截止阀
J61W-16P WJ61W-25P WJ61W-40P




15


110


34


22.5


10


18


214


22.5




20

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