Q41J-10衬胶半衬球阀

D341J法兰衬胶蝶阀

D71J衬胶蝶阀

D341J-16衬胶半衬蝶阀

Z41J-10衬胶闸阀

J41J衬胶截止阀

J45J衬胶直流式截止阀

H44J衬胶旋启式止回阀

H40J浮球式衬胶止回阀

H41J-10衬胶升降式止回阀

三通式隔膜阀 G49J

搪瓷隔膜阀 G41C