... :+/-0.05mm 4.OEM Machining precision mechanical machining auto parts, metal auto parts, car parts, motor parts Ⅰ.BRIEF INTRODUCTIONWe can offer ... other services. The line of production: valves, construction parts, auto parts, railways parts, marine parts, structure parts of printer, ... material and hardness needed.2.Quantity of the product.3.Part application.4.The tolerances of the product.5.Drawings, ...