泉州冷/热量表, 【泉州七洋】专业品牌,值得信赖
公称口径(mm),连接法兰外径D1(mm),螺栓孔中心圆直径D2(mm),连接螺栓n-M50,165,125,4-M1665,185,145,4-M1680,200,160,8-M16100,220,180,8-M16125,250,210,8-M16150,285,240,8-M16200,340,295,8-M16250,395,350,24-M16300,445,400,24-M16