低温截止阀DJ41W。撞击式截止阀ZJ41H。法兰截止阀 蒸汽截止阀J41H、WJ41H。黄铜截止阀、铸铁截止阀、铸钢截止阀、不锈钢截止阀J41W、法兰铸钢截止阀,锻钢截止阀、铬钼钢截止阀、铬钼钒钢截止阀。节流阀、高压节流阀、截止节流平衡阀L41Y/L44Y/L46Y/L86Y/L87Y/L66Y/L67Y/L47Y。节流截止放空阀FJ41Y。节流截止排污阀TPJ41Y。等系列产