厂家直销j41h16c截止阀手动铸钢截止阀法兰截止阀
截止阀j41h-16c铸钢法兰高温蒸汽dn25截止阀
厂家直销批发 价格实惠 j41h-16c 铸钢截止阀 dn250
铸钢截止阀j41h-16c/25cdn15dn20dn25dn32dn40dn50dn65dn80dn250
图片内容是:铸钢截止阀
j41h手动截止阀
厂家供应精铸铸钢截止阀j41h-16c dn40法兰截止阀
zysdr 铸钢截止阀 精铸重型蒸汽阀门 j41h-16c dn300
铸钢法兰截止阀j41h-100c dn50
铸钢法兰截止阀手动操作方便节能