Ningbo Nathan Machinery Co., Ltd. (Renyi Casting) is a professional OEM manufacturer, established in 2005, specializing in the supply of die casting, lost wax casting, sand casting, precision machining and metal products. We supply raw casting to final finish product. We use tried and tested casting suppliers, but perform all secondary machining and QC operations in-house.

Thanks to our experienced engineering team, skilled production operatives and strong relationship with key local sub-contractors, our company supplies a unique blend of manufacturing services to provide complete

Products to customers all over the world.

We are accredited to ISO 9001: 2008 quality management system through NQA, a UKAS recognized auditor. Our shop floor operate 5S methodology.

Our key advantage over other is our attitude toward quality. We know what's right, and not what just good enough. This is reflected in our quick response, technical analyze of drawings, proactive approach in passing on our production experience to help clients reduce cost and improve designs.

All in all, we aim to supply competitively priced quality products, with the aim of creating a long lasting cooperation for mutual benefit.