凸缘板,翼缘板;
The composite beam is a component comprised the steel beam and the concrete flange plate beam.
组合梁是钢梁和其上混凝土翼板共同抗弯的一种构件.
A of butterfly valves LT. Check valve flange plate. These products exports a single mechanical processing.
蝶阀A型LT型. 止回阀法兰碟阀. 上述产品出口单件的机械加工.
Check valve flange plate.
止回阀法兰碟阀.
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