www.色欲-www.深夜成人网站在线观看-www.手机在线观看黄片视频-www.婷婷-www.无码在-www.香蕉

HH48X/HH49X-16P蝶式微阻緩閉消聲止回閥

HH49X-16C蝶式微阻緩閉消聲止回閥

H12W-16P立式止回閥

H11W-16P不銹鋼內螺紋S型止回閥

H14W臥式絲口止回閥

H41H-16C鑄鋼法蘭升降式止回閥

HQ41X-16Q球形止回閥

H42F46襯四氟立式止回閥

H44H-25C鑄鋼旋啟式止回閥

H41J-10 升降式襯膠止回閥

HC41X-16Q球墨鑄鐵消聲止回閥

H76W/H對夾蝶式止回閥

HH44X微阻緩閉止回閥

H71H/W對夾式止回閥

H44W-16P不銹鋼旋啟式止回閥

H44T鑄鐵旋啟式法蘭止回閥

HC44X碳鋼橡膠瓣止回閥

GLH41H不銹鋼軸流式止回閥

H41F46襯四氟法蘭升降式止回閥

HH48/49X微阻緩閉蝶式消聲止回閥

H41X不銹鋼衛(wèi)生級法蘭球型止回閥

HC41X(B型)消聲止回閥

H41W不銹鋼升降式止回閥

H42X(DRVZ)靜音式止回閥

HQ44X不銹鋼立式球型止回閥

H77X-16P不銹鋼蝶式單瓣止回閥

H74H對夾式止回閥

H44H/W美標不銹鋼旋啟式止回閥