截止阀J41H,

中型精铸截止阀j41h-16c dn25 铸钢材质
法兰截止阀j41h-25c
j41h-16c(25c)重型 中型截止阀
厂家直销截止阀 j41h-16c铸钢法兰截止阀 国标法兰硬密封截止阀
截止阀/法兰截止阀/铸钢截止阀/j41h-100