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The butterfly valve butterfly plate installed in pipeline diameter direction.
蝶阀，可以安装在任一个方向上。
youdao
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Our company produces the granite plate product has the butterfly blue series;
我公司生产的花岗岩板材产品有蝴蝶蓝系列；
youdao
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Our company produces the granite plate product has the butterfly blue series;
我公司生产的花岗岩板材产品有蝴蝶蓝系列；
youdao