-
大慶鍛鋼止回閥 Forged steel check valve H11H/Y、H61H/Y
-
大慶鍛鋼止回閥 Forged steel check valve H41H/Y、H44H/Y
-
大慶美標(biāo)旋啟式法蘭止回閥 API Swing flanged check valve H44H/Y/W
-
大慶美標(biāo)對夾升降式止回閥 API Wafer type piston lift check valve H72H/Y/W
-
大慶國標(biāo)對夾升降式止回閥 GB Wafer type piston lift check valve H72H/Y/W
-
大慶美標(biāo)對夾雙瓣旋啟式止回閥 API Wafer type double disc Swing check valve H76H/Y/W
-
大慶國標(biāo)對夾雙瓣旋啟式止回閥 GB Wafer type double disc Swing check valve H76H/Y/W
-
大慶升降式法蘭止回閥 GB Lift flanged check valve H41H/Y/W
-
大慶旋啟式法蘭止回閥 Swing flanged check valve H44H/Y/W
