Looking for a reliable supplier and manufacturer of 4mm heat shrink tubing in China? Look no further than Wenzhou Huida Plastic Co., Ltd. Our factory is equipped with advanced machinery and skilled employees to consistently produce high-quality heat shrink tubing. Our 4mm heat shrink tubing is made of durable and flexible polyolefin material, perfect for electrical insulation, wire bundling, and cable marking. With a 2:1 shrink ratio and a maximum temperature rating of 125°C, our heat shrink tubing provides a reliable and long-lasting solution for your project needs. Not only do we offer competitive pricing for our products, but we also provide prompt and efficient customer service for our clients. You can trust Wenzhou Huida Plastic Co., Ltd. to be your go-to supplier for quality heat shrink tubing. Contact us today to learn more about our product offerings and how we can customize our 4mm heat shrink tubing to meet your specific needs.