类型
coil, flat, leaf, spiral, waves
材质
Steel, spring steel, carbon steel, stainless steel ,music wire steel
用途
, hardware, electronic products, electric appliance, computers, sports
Product name
heavy duty extension spring
material
Steel, spring steel, carbon steel, stainless steel ,music wire steel
Type
compression, torsion, flat , extension springs, spring clips
Packing
inner PE plastic bag, carton
Quality
High-quality raw material, strict and careful inspection
Surface treatment
Zinc / Nickel / Gold / Silver / Tin /or Customizable etc.
Direction of coils
Left/right