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铸铁地下法兰暗杆软密封闸阀
GBDIN暗杆软密封闸阀F4
GBDIN暗杆软密封闸阀F4
GBBS暗杆软密封闸阀
MATERIAL SPECIFICATION BS 5163 Non-Rising Stem Resilient Seated Gate Valve Z4704 Size L D D1 D2 b n-d H H1 W W.T(kg) 165 178 190 203 229 254 267 292 330 356 150 165 185 200 220 250 285 340 405 460 110 125 145 160 180 210 240 295 355 410 88 99 118 132 156 184 211 266 319 370 19 19 19 19 19 19 19 20 22 24.5 4-19 4-19 4-19 8-19 8-