moulding sand composition
冷却床引风管路可灵活地安装于设备的两侧，完善的通风除尘系统保证型砂中的有效成分损失最小。
Ventilation ductwork can be flexibly installed on both sides of the device, perfect ventilation and dust collection system will ensure the active ingredients of sand in the minimal loss.
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模块上移
模块下移
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