1.Product name Battery Contact ComGas Generation Equipment & Parts pression Coil Conical Spring2.Material1.Steel:303/304/316/412/etc2.Aluminum alloy:5052/6063/2017/7075/etc3.Brass alloy:3602/2604/H59/H62/etc4.Steel alloy : carbon steel/ die steel/etc5.Other special materials :copper /bronze/iron/etcWe handle many other type of materials . please contact us if your required materials are not listed material3.ProcessCNC turning, CNC turning and milling compound processing, 3/4/5 axis CNC Military millPharmaceutical Equipment & Machinery ing, wire- cutting, EDM, griding etc.4.Surface treatmentAnodizing/Polishing/ (Zinc, nickel, chrome, tin, brass, glod, silver, titanium) Plating /Black Oxide /Hot-dip galvanizing/painting/powdering/electroplating.etc.5.StandardAPI.BS.DIN.JIS.GB.etc6.ShippingDHL,EMS,UPS or Fedex (fast and safer)7.Delivery timeSampleVentilation Equipment : within 7 days.Production: within 15-25 days9.SizeDepend on the drawing