电动截止阀、电动法兰铸钢截止阀J941H-16C DN50/DN80/DN100/DN150/DN200 电动截止阀、电动法兰铸钢截止阀J941H-16C DN250/DN300 电动截止阀、电动法兰铸钢截止阀J941H-25C DN50/DN80/DN100/DN150/DN200 电动截止阀、电动法兰铸钢截止阀J941H-25C DN250/DN300 电动截止阀、电动法兰铸钢截止阀J941H-40C DN50/DN80/DN100/DN150/DN200 电动截止阀、电动法兰铸钢截止阀J941H-40C DN250/DN300 电动高压截止阀、电动法兰铸钢截止阀J941H-64C DN50/DN80/DN100/DN150/DN200 电动高压截止阀、电动法兰铸钢截止阀J941H-64C DN250/DN300 电动高压截止阀、电动法兰铸钢截止阀J941H-100I DN50/DN80/DN100/DN150/DN200 电动高压截止阀、电动法兰铸钢截止阀J941H-100I DN250/DN300 电动截止阀、电动法兰不锈钢截止阀J941W-16P DN50/DN80/DN100/DN150/DN200 电动截止阀、电动法兰不锈钢截止阀J941W-16P DN250/DN300