By adopting the compound mold of die mold, furan resin sand and graphite sand, the heavy duty thin wall complex Al-alloy castings have been successfully produced.
采用金属型、呋喃树脂砂、石墨砂等复合铸型，成功生产了大型、薄壁、复杂铝合金铸件。
As the substitute structure of the brick mixed structure, CL light duty compound wallboard building system structure has great advantage in economizing the energy.
CL轻型复合墙板建筑体系结构作为砖混结构的替代结构，在节约能源方面有很大优势。
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