The quality of SUNBOW Dual Wall Tube is comparable to the international first-line brand Tyco, but the price is only half of Tyco. This has become the irresistible reason why the German automotive wiring harness giant chooses SUNBOW double-wall tube. Our story begins because of the dedication to quality.

At present, there are many merchants selling Dual Wall Tubes in the market, and the price difference between high and low is too large, mainly because most of them are not factories. Even if some are factories, they are not completely self-produced. Most factories can only do extrusion. The processes of irradiation, expansion and gluing are all sent to powerful factories to do. SUNBOW is one of only three domestic factories with one-stop production equipment and high output. ( PVC tube).

In February last year, a German automotive wiring harness giant found SUNBOW through the introduction of a US-owned wire harness customer of SUNBOW, and demanded a double-wall tube. The customer said that they were supplied by Volkswagen. In addition to the requirements of flame retardant, waterproof and environmental protection, this Dual Wall pipe must also have a precise shrinkage ratio and no wall deviation after shrinkage. The customer used to purchase from Tyco in the United States, and hoped that our quality could be 100% substitute. Considering the cost, the customer hopes to develop a supplier in China whose quality can completely replace the Tyco brand. The customer said that he could provide samples of Tyco Dual Wall Tubes for our reference, and also signed a non-disclosure agreement with us. We are very excited and confident to receive this news, because we have been serving the Japanese Toyota automobile wiring harness supplier for 5 years without a single complaint.

Customers who have requirements are good customers. We analyzed the various properties of the Tyco samples. The engineering department confirmed the production process and technical indicators within one day. Within a week, we sent the double-wall tube samples with confidence. After 3 months of testing and comparison, SUNBOW's Dual Wall Tube can completely replace the Tyco brand. The quality is not only recognized by customers but also recognized by the Volkswagen headquarters, but the price is only half of Tyco's, the final customer determines SUNBOW double wall tube replaced the Tyco brand, and SUNBOW was selected as the exclusive double wall tube supplier for its automotive wiring harness.

Why SUNBOW Dual Wall Tube can be recognized by the German auto giant?

1. SUNBOW uses international big-name polyolefin raw materials, the plasticity is 2 times higher than that of domestic small-brand ones, and the sleeves produced will have better expandability and shrinkage effect. ( silicone tube)

2. SUNBOW is produced by imported equipment from Japan. Whether it is extrusion, irradiation or expansion, the tolerance range of the inner diameter has reached the international standard, and there is no wall deviation in shrinkage, which is comparable to the American brand Tyco.

3. SUNBOW has a unique formula, and the addition of flame retardants is controlled in an appropriate ratio, so that the flame retardant adhesive double-wall heat shrinkable tube produced is not only flame retardant but also has better heat shrinkage performance.

The quality of SUNBOW Dual Wall Tubes is comparable to the international first-line brands. Many Fortune 500 companies such as Mercedes-Benz, Volkswagen, Panasonic, and Siemens are using them. Choosing SUNBOW Dual Wall Tubes is definitely of high quality and low price.