H42H-16C-DN80
面议H42H-16C-DN80
面议H42H-16C-DN65
面议H42H-16C-DN50,H42W, H42H立式止回阀
面议H42H-16C-DN25,H42H-25-DN25 立式止回阀
面议H42H-16C-DN32
面议H42H-16C-DN20 立式止回阀门 锻钢立式止回阀
面议H44H-16C-DN200,H42H-16C-DN200 止回阀
面议H42H-150LB-DN25 立式止回阀,H42W-H42H立式止回阀
面议H44H-H44H旋启式止回阀,H44H铸钢止回阀,H44H止回阀
面议H44H-16C-DN400 H44H-16C/P H44H-25旋启式止回阀,止回阀
面议H44H-16C-DN600,止回阀 ,旋启式止回阀
面议H42H锻钢立式止回阀 H42H H42W立式止回阀
面议