QB/T 2072.4-1994
(Sugar machinery pressure vessel GM parts. Steel hanging bracKet) 制糖机械.压力容器通用零部件.钢制悬挂式支座 |
QB/T 2072.10-1994
(Sugar machinery pressure vessel GM parts. Welded flange gasKet) 制糖机械.压力容器通用零部件.平焊法兰垫片 |
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