JL-HDH46X/H蝶式缓冲止回阀

JL-H76X/H/W蝶式止回阀

JL-H71W/H对夹式止回阀

JL-H44W-150LB美标止回阀

JL-H44H/W旋启式止回阀

JL-H42W/H立式止回阀

JL-H41W-16P止回阀

JL-HH46-48-49X微阻缓闭蝶式止回阀

JL-DHH44T-H-X微阻缓闭消声止回阀

JL-H41H-64止回阀系列

JL-JLH41H/Y防火型截止/节流/止回多功能阀

JL-BJ41W保温截止阀

JL-J11H-64锻钢截止阀

JL-J61Y焊接式截止阀

JL-J61Y压力自紧式阀盖

JL-J41F46-16C聚全氟衬里截止阀

JL-DJ41Y-25P低温截止阀

JL-TJ40H-16C手动调节阀

JL-J41B-16/25/40氨用截止阀

JL-J41W国标截止阀