压缩弹簧

spring specification spring wire0.1mm-80mmmaterailcarbon steel,alloy steel,stainless steel,etc.surfaceZinc,Nickel,black paint,Electroplating,Power Coating we are specialize in springs,metal spring,steel spring are widely used in automotive interior, industrial machinery, apparatus equipment, toys, automatic washing machines and various types of spring tension regulator, this spring general circular section steel, tin phosphorus copper production. , displayed 0.2 mm-12.0 mm range. Extension springs are the direct opposite of compression springs, in that they are close-coiled helical springs that extend under a pulling force. When designing extension springs consideration must be given to stress due to initial tension, stress and deflection of hooks, special coiling methods, secondary operations, and allowance for over-stretching at assembly.