郑州高压阀门公司 供 升降式止回阀H41H-16/25Q H41H-16C H41H-25C H41H-40 H41H-64 H41H-100 H41W-16P/R H41W-25P/R H41W-40P/R H41W-64P/R H41W-100P/R 升降立式止回阀H42H-25Q H42H-25 H42H-40 H42H-64 H42H-100 H42N-25/40 H42W-16P/R H42W-25P/R H42W-40P/R H42W-64P/R H42W-100P/R H42Y-160 旋启式止回阀H44H-16C H44H-25C H44H-40 H44H-64 H44H-100 H44T-10 H44W-10 H44X-10 H44W-16P/R H44W-25P/R H44W-40P/R H44W-64P/R H44W-100P/R 管道式止回阀GH41H-16 GH41H-25Q 对夹式止回阀H71H-10C H71H-16C H71H-25C H71H-40 H76H-16C H76H-25 H76H-40 H71W-16P/R H71W-25P/R H71W-40P/R H74W-25P H74H-16C H74H-25C H79X-10 H79X-16 H76X-10 H76X-16 微阻缓闭止回阀HH44X-10 HH44X-16C HH44X-25C HH49X-10 HDH48X-10/16 HDH46X-10/16C HH48X-16/25C HH41X-10 静音止回阀HC42X-10 HC44X-10 详情请登录:www.zg-valve.com