Customized Machining Service Product Specification This ring made by CNC turning and machining the holes later, aluminum material, anodize black and gray or custom. Some parts often difficult to machining by one process way, have to CNC turning before CNC machining it, or do all at once by CNC precise automatic lathe, our engineers will check the design and to find a better and economic way to do it, picture showed part is made made for our United Kingdom customer, aluminum 7075 material, sandblast 120#, hard anodize black matte finish, precise tolerance is +/-0.015 after finish. Material and finish: Material used often by us Aluminum Stainless steel Brass Copper Plastic Iron AL6060 AL6061 AL6063 AL6082 AL7075 AL2024 AL5052SS201 SS301 SS303 SS304 SS316C35600 C36600 C37000 C37100 C37700 C2200 C2400C11000 C12000 C12200 C10100Nylon6 POM Delrin PEEK ABS Acrylic PC PMMA Teflon20# 45# Q235 Q345 1214 1215 4130 4140 Surface treatmentAs machined Anodize Imitation hard anodize Hard anodize Powder coating Sandblast Polish Brush Laser etch logoAs machined Passivation Powder coating color zinc-plated, black zinc-plated Nickel plating Electrophoresis Nitriding HRC70-120 PolishAs machined Passivation Brushing ElectropolishAs machined Passivation Brushing ElectropolishAs machinedAs machined Powder coating Paint Electrophoresis Heat treatment Polish Tolerance we can do +/-0.01mm +/-0.01mm +/-0.01mm +/-0.01mm +/-0.02mm +/-0.01mm Our advantage: 1,Engineer team and produce team with some 20+years experience; 2,3-5days for urgent sample;10-15days for urgent mass produce; 3,Free replacement will be shipped soon if any problem; 4,Free update work for customers' design; 5,Also can help to purchase related screw, spring, O ring or some other parts for customers. Packing: 1: Inner Pack with Inner plastic bag/Bubble bag, parts which easy to scratch or damage have to be packed by Pearl cotton/EPE one by one or by skin packing; 2: Outer hard export carton or custom as customers鈥?required; 3: Will use plywood box, plywood pallet or plastic pallet, to protect all better and convenient for shipment also. Shipment: 1, Door to Door from Hongkong UPS, FEDEX, DHL, TNT or EMS, ship cost will be cheaper than same courier than from mainland China, if urgent will ship from Mainland China, will be 1-2 days faster than same Hongkong way; 2, Door to airport, an economic way to mass produce with high weight or big CBM, especially customers鈥?office near the airport, but they have to do Custom clearance and pay the import tax there and arrange shipment also; 3, Door to door railway station by railway, a good way for some Europe countries, economic than express and air, and faster than by sea; 4, Door to door by sea, the most economic way for mass produce with high weight, especially for big CBM, but with a long ship time.Customized Machining Service website:http://www.ideal-cncmachining.com/machining-service/