Cut cured concrete pipe sections with saw or chisel, and cement sections together to form odd shaped fittings.
用锯子或凿子一起切割固化混凝土管段以及水泥部分，形成奇形接头。
What is a copper chisel paper-cut?
什么是铜凿剪纸？
Chisel cutting operation of cut, cut cut, cut file, attack thread, the thread sets.
切削性操作 有錾削、锯削、锉削、攻螺纹、套螺纹。
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