Changzhou Hongsheng Machine Fittings Factory is a professional manufacturer of auto parts. We integrate research, development, design, manufacture and sale as a whole. Our main products are wheel nuts, high-strength wheel bolts, wheel locks and marine anti-theft oil caps. We have a skilled team, and furnished with many advanced equipment such as multi-station cold-forging machines, precision CNC lathes, automatic electroplating production line and more. We also bought multi-testing facilities such as hardness testing machine, strength testing machine, torque testing machine, salty spray testing machine, thickness testing machine and more to establish quality test center. Furthermore, our operations run according to ISO 9001:2008 and ISO/TS16949:2009 standards. All of those provide strong guarantee of steady product quality and dependability. Our business philosophy is to achieve success through good quality. We are constantly optimizing products structure, improving our service quality, and devoting ourselves to create HONGSHENG brand.