J41H-300LB手动美标截止阀

J41W-40P不锈钢截止阀

H44N-25C旋启式燃气止回阀

H42W-16P立式不锈钢止回阀

PZ73H-10手动对夹式刀形闸阀

Z83Y-160平板卡箍闸阀

Z41W-25P不锈钢法兰闸阀

Q41F46-16C衬氟法兰球阀

TQ11F、TQ41F弹簧复位式球阀

3PQ11F三片式内螺纹球阀

Q641F-16PQ641F-16P气动法兰球阀

Q41F-40CQ41F-40C国标法兰球阀