Mbụ, ngwá ọrụ nwere ike kewara ise edemede dị ka ụdị nke workpiece nhazi elu: 1. Machining a dịgasị iche iche nke mpụga elu ngwaọrụ, gụnyere mbịne ngwá ọrụ, planing knives, egwe ọka cutters, elu elu broach na faịlụ;2. Ngwá ọrụ nhazi oghere, gụnyere egwu, ream ...
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