L86Y浙江油田阀厂家
面议L86Y浙江油田阀厂家
面议J46Y L46Y 平衡式节流截止阀J46Y L46Y
面议LJ47Y高压角式截止阀 LJ47Y
面议J66Y油田用节流截止阀 J66Y
面议油田高压阀门
面议L87Y自平衡式节流截止阀 L87Y
面议JHT46Y JHT66Y JHT86YJHT46Y JHT66Y JHT86Y 平衡式油田多用阀
面议JHT47Y JHT67Y JHT87YJHT47Y JHT67Y JHT87Y 多功能油田调节阀
面议T48Y T68Y油田多级调节阀 T48Y T68Y
面议L86Y卡箍节流阀 L86Y
面议L/J66Y-250平衡式节流截止阀L/J66Y-250
面议LJ47Y油田注水调节阀 LJ47Y
面议