L/J66Y焊接平衡式截止节流阀

L/J46Y油田截止节流阀

L41H-16C手动铸钢节流阀

L41H法兰节流阀

油田阀门:双作用节流截止放空阀

FJ41Y节流截止放空阀

FJ41H节流截止放空阀

J941Y-100I电动高温高压截止阀

DQ61F-25P/40P焊接低温球阀

DQ61F不锈钢低温焊接球阀

（加长轴）加长杆不锈钢低温球阀DQ41F

DQ41F-25P/40P不锈钢低温球阀