To analyze every quality defeCts Of oil-tempered springsteelwire made in China, put forward appropriate improvement measures.
分析了国产油淬火-回火弹簧钢丝的各种质量缺陷，并提出了相应的改善措施。
2
Then, pneumatic valve spring made from this springsteelwire have been treated by this investigation of liquid tufftriding process.
然后，用以对此规格的钢丝制造的气阀弹簧进行了低温液体软氮化处理。
3
These anti-roll bars are manually manufactured in-house from premium heat-treated springsteelwire using precision bending machines that ensure equal side angles.