... single-layer board 单层板 single-sided board 单面电路板 ; 单面敷箔板 single-clad board 单面印刷电路板 ...
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single-layer particle board 单层碎料板
multi-layer of single wall-corrugated board 多层粘合单坑纸板
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A hammer frame board is changed into a single layer prismatic shape or an I shape to save steels of the rotor part of the crusher 30%, and thus the cost is lowered.
将锤架板改为单层棱形或工字形，使粉碎机转子部分节省钢材30%，降低了成本。
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