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Quilting and grinding tube is a mechanical processing technology that uses oil stones on the grinding head to perform reciprocating high-speed grinding and finishing on the inner hole of the cold drawn tube, so as to achieve the required tolerance size and surface roughness requirements for the inner hole. According to customer requirements for grinding and processing, the tolerance range can be achieved (such as H7, H8, H9, etc.), the roughness can reach Ra0.4, the ellipticity can reach 3-5 thr...
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