China Zhejiang Sanmen Herod Mattress Co.,Ltd. locates at the southeast of China, it is only one and half hour's drive from Ningbo airport and Hangzhou airport, very convenience at the transport and shipment. We specialized in making various of springs, lowering car spring, lower car spring for above 8 years, our main products, lowering car springs, lower car springs is bonnell spring, serpentine spring for mattress and sofa usages, compression spring, extension spring, torsional spring, leaf spring, lowering car spring, lower car spring and other kinds of springs for automobile, machine, artcraft and other usages. Because of skilled workers, advanced equipments, strict management, our products, lowering car springs, lower car springs, truck lowering spring are of high quality and they are warmly welcomed by our customers from domestic and abroad of China.