圆柱螺旋拉伸弹簧
cylindroid helical-coil extension spring
cylindrical helical tension spring
cylindrically coiled tension spring
弹簧拉压试验机
spring tension and compression testing machine
拉伸弹性极限
elastic limit for tension
拉伸弹性模量
tensile elastic modulus
stretch modulus
modulus of elasticity for tension
mould opening temperature
冷拉弹簧钢
cold drawing spring steel