ZNF逆止阀

H71H，H71W升降式止回阀；对夹止回阀；止回阀,H71H，H71W

HH44Z/X/T/H微阻缓闭式止回阀，缓闭止回阀；微阻止回阀；止回阀,HH44X

H41T，H41，HC41（B型），H41-16T消声止回阀,止回阀,H41T，H41，HC41（B型），H41-16T型消声止回阀

H44H/W旋启式止回阀,法兰止回阀,H41H旋启止回阀，H44H铸钢止回阀

H42H/W不锈钢法兰立式止回阀，法兰立式止回阀,不锈钢法兰止回阀,立式止回阀,H42H

H14WH14W.螺纹旋启式止回阀；旋启式止回阀；不锈钢螺纹止回阀；止回阀

H42T,DRVZH42T型*止回阀，止回阀,H42T,DRVZ,*式止回阀

不锈钢升降式止回阀H41W-16P，升降式止回阀；不锈钢止回阀；止回阀,H41W不锈钢升降式止回阀H41W-16P，升降式止回阀；不锈钢止回阀；止回阀,H41W

H12W-16P/RH12W-16P/R不锈钢内螺纹止回阀，丝口止回阀H12W-16P，H12内螺纹立式止回阀

H77X,H77H,H77Y,H77W对夹旋启式止回阀,旋启式止回阀,止回阀,H77H,H77X

300X300X缓闭止回阀，300X缓闭式逆止阀：止回阀,缓闭式止回阀,（300X型）HH42X缓闭式逆止阀