单项选择题
A.成形必备B.工艺用料C.成形工艺D.成形用料
A.6~8mmB.3~4mmC.1~2mmD.5~6mm
A.5~7mmB.0.5~2mmC.3~4mmD.4~6mm
A.套裁B.样板C.计算D.组合
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