进口止回阀-美国图尔阀门中国有限公司

进口旋启式高压止回阀H44H,H44Y

进口旋启式高温止回阀H44H,H44Y

进口旋启式衬氟止回阀H41F

进口消声缓闭式止回阀300X

进口限流止回阀LH45

进口微阻球形止回阀HQ44X,HQ45X

进口微阻缓闭止回阀HH44X

进口微阻缓闭蝶式止回阀HH46X,HH48X,HH49X

进口铜止回阀H14W-16T,H44W-16T,H12X-16T

进口丝扣止回阀H15W-16P

进口升降式高压止回阀H42Y,H42W