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By certification 
Capability:
Small Parts Assembly and Sub-Assembly.
Shapes in Squares, Rounds or According to Custom Orders.
Internal & External Grinding, Tolerance ±0.01mm.
Multi-axis Machining & Rotary Transfer Units with CNC Attachments.
Precision Machining With Out Diameter from 2mm to 90mm and Inner Diameter as Small as 0.30mm, Tolerance ±0.01mm.
Materials:
Stainless Steel: 303, 304, 316, 316L;
Alloy Steel: 1010, 1020, 1045, 12L14;
Aluminum: ASTM 6061-T651, 2011-T3, 7075-T651;
Brass: GB Hpb 59-1, H62, H63;
Other materials.
Surface Treatment:
Heat Treatment.
Irridite / Chemical Film / Conversion Coating.
Anodizing Treatment.
Plating with Nickel, Electroless Nickel, Zinc, Chromate, Dichromate, Tin, etc.
As Customers' Requirements.
