Parabolic Leaf Spring Material:Sup7,Sup9,Sup9A,Sup11,Sup11A,50CrV4, Certificate: ISO/TS16949:2009 With 6 product lines and 500 workers, our annual capacity is 60 thousand tons. 80% of the production are for OEM customers and left for export. We have professional engineers to measure sample and make drawings. We have complete labs to inspect the products from raw material to finished assembly. We passed the ISO/TS 16949:2002 Certificate by TüV Rheinland Group German. We make a full range of multi-leaf spring and parabolic leaf spring and Z-type leaf spring product which is used in heavy duty truck and trailers and light vehicles. The raw material we use are SUP7,SUP9,SUP9A,SUP11,SUP11A.
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