主营:不锈钢波纹管,铁氟龙管,高压油管,无缝钢管,不锈钢接头,液压接头,卡套接头,钢管接头,过渡接头,扣压接头,直接头,弯接头,三通接头,四通接头,异径接头,补心,法兰,对开法兰夹,模具油咀,非标接头总成