Plastic Injection Molding in China
Sincere Tech is a privately held plastic mold company based in Dongguan, China. We provide state of the art plastic mold, injection molding, prototype molding, die casting, aluminum die casting service:
- FDM – Fused Deposition Modeling Services
- plastic mold and molding manufacturing
- aluminum die casting
- CNC machining
- PolyJet – 3 Dimensional Printing Services
- SLA – Stereolithography
- Urethane Casting
Our 100% satisfaction guarantee makes your purchases with Sincere Tech worry free.
Sincere Tech Goal
Our goal is to help customers integrate rapid prototyping technologies, plastic mold, CNC machining prototype, die casting parts to get their design process to benefit from increased speed to market, more refined design, providing the most competitive prices and the highest quality plastic mold and molding products.

We Value Our Customers
Our business is built on repeat customers, if for any reason you are dissatisfied with any aspect of our process and products we want to make it right. Our products are backed by our satisfaction guarantee.
Instant Rapid Prototyping Quotes
- Generate instant quotes using our Rapid Prototype Quote tool or you may email us your files.
- Approve and pay for your order.
- Parts are carefully packaged and shipped to you in about 24 hours.
- CNC machining prototype service in short time and fast delivery, 3-5 days to receive the prototype sample by DHL delivery)
Sincere Tech has the experience and skills to make plastic injection molding your parts easy. For high volume part runs, injection molding is an excellent fit. Molds made from aluminum or tool steel are used to create parts from thermoplastics such as ABS or Polycarbonate.
Parts made from injection molding are consistently accurate and can be made very quickly. Alpha Prototypes provides Mold Design assistance and precision tooling to meet your specific application. For smaller quantities using aluminum tooling or a hardened steel molds for producing hundreds of thousands of parts. From determining the size of the mold, selecting the plastic and machine size we make the process easy.
We offer comprehensive thermoplastic and thermoset capabilities, computer-aided manufacturing, skilled machine operators and ridged quality assurance. The result are parts that will exceed your expectations.