The first thing for you to do is to contact us. At Quanzhou Yisheng Machinery Co.,Ltd., we have been always adhering to the business principle of "Quality First" and conducting strict quality control on every process. We take pride that we have a promised high qualification rate of our exquisitely-made products. However, due to many reasons like the negligence of our staff and occasional mistakes, there are few imperfections delivered out of our factory along with those high-quality products. Please understand that and we will solve this problem very well. Send us the imperfections and we will replace them to perfectly new products or refund the money on them to you.

Yisheng Machinery is one of the leading supplier within the racing camshaft manufacturers industry. Yisheng Machinery has created a number of successful series, and racing camshaft is one of them. Yisheng Machinery high torque camshaft features with reasonable structure and appealing design. An appropriate programmed of quality control (qc) must be implemented in its production.

our team attaches great value to the quality of roller cam and aims to be the best. Inquire!