We have been purchasing the polymer sheets from Hengcheng for the packaging of medical devices for a long time. Their 100,000-level clean workshop and the ISO 13485 system have made us very confident. The batch-to-batch differences of the products are extremely small, and the biological compatibility tests are always successfully passed. They are an essential and reliable part of our supply chain.

"The phrase 'Because of its focus, it is professional' is clearly demonstrated in Hengcheng. The custom-made PETG protective case material they provided was of high quality. They had a meticulous control over details and a fast response speed in research and development. They truly solved problems from our perspective, and the feedback from customers after the product launch was very positive."

"We require food-contact materials that meet strict environmental protection standards. Hengcheng's materials not only possess complete SGS reports, but also have stable processing performance, high transparency, and fully meet our dual demands for safety, aesthetics, and sustainability."