In a PVC piping system, the sealing performance, durability, and overall reliability of every pipe fitting begins with the core of its mold—the mold base. As the "skeleton" of an injection mold, the precision of the mold base directly determines the final fitting's dimensional stability, interchangeability, and sealing capability, forming the foundation for consistent mass production.

Changhui Company understands this deeply, establishing ultra-precise manufacturing as our cornerstone. Our professional team comprises over 100 experienced engineers and skilled technicians. Supported by more than 64 precision machining equipment units—including 35 advanced CNC machining centers that form our core production capacity—we ensure every process, from rough to finish machining, meets stringent demands for part accuracy and surface finish. Our newly added imported CMM, horizontal machining centers, and high-precision mold base production lines are dedicated to controlling dimensional tolerances to extremely high levels, meeting requirements akin to those for precision components like gears, thereby ensuring every PVC pipe fitting formed by our mold bases achieves a seamless and secure fit.

We are not just a manufacturer but a guardian of quality throughout the entire process. Every step, from material cutting and blanking to surface milling, from mold frame processing to template grinding, strictly adheres to the ISO9001 International Quality Management System. Comprehensive inspection facilities and rigorous management ensure quality is maintained from start to finish.

To minimize our clients' mold development cycles, Changhui has built robust supply chain support. We maintain long-term stock of large quantities of forged materials like P20 and S50C, and can supply various high-quality domestic and imported mold steels including 2738, 718, and NAK80. Our in-house raw material warehouse and large-scale production equipment enable us to flexibly meet diverse needs for large or ultra-high-precision mold bases, significantly enhancing delivery efficiency.

Changhui has深耕 (deeply cultivated) the mold base niche for over 40 years. We specialize in manufacturing medium and large-sized, high-precision mold bases for plastic injection molds, die-casting molds, and stamping dies. Our products are widely used in industries such as automotive and home appliances. We were among the first in China's mold industry to obtain ISO9001 certification and have built a high reputation as a recognized "hidden champion" in this field.

Changhui Company sincerely welcomes inquiries from mold manufacturers and automotive industry clients. We support processing based on provided samples or drawings. Let us work together to build safe and efficient pipeline connections with our precise and reliable mold bases.