... precision.Processing Scope: CNC turning, milling, drilling and punchingTechnics: machining, casting, forging, welding, surface treatmentSpecifications of machining parts ... dimension tolerance of machining of customers’ requirement.4, Surface roughness: Ra0.8-3.25, Weight: ranging from ... 0.50g to 10000kg6, Surface finish: polishing, oiled (rust-prevented), zinc-plated, nickel ...