Type of compression spring and ends
There are many different types of compression springs for you to choose from, such as conical compression spring, hourglass(convex) compression spring, barrel(concave) compression spring, reduced ends compression spring, cylindrical compression spring, and so on.
here are many different types of ends for you to choose from, such as closed and squared ends, closed and ground ends, open ends, double closed ends, and so on

Material and Finish

• Carbon Steel: 65 Mn,72 A,82 B,SWP,Galvanized wire,Nickel-coated wire
• Stainless Steel: SS 201,SS 302,SS 304,SS 316,SS 631
• Copper Base Alloy: Beryllium
• Copper Springs,Phosphor bronze ,Brass spring,Tin bronze,Silicon bronze
• Alloy Steel: 60Si2Mn,55CrV,55CrSi
  Surface
• treatment:Zinc,Nickel,Copper,Gold/Silver,Chromeplated,Black oxide,Electrophoresis