... brass :H59,H62,H65,C3600,C3604;phosphor bronze;aluminum:2011,2024,6063,6061,7075.2manufacturing methodhigh precision ... quality control system.step 4IPQCQC must inspect 2-5 parts every 2 hours , i.e., in-process ... focused on R&D of precision CNC machining parts and keeps improvingworkmanship and product quality.With the ... me on your skpye ! CNC Machining Parts stainless steel shaft for machinery industry