
Since establishment, Ziwei has been producing plastic truck seals for many representative brands of the sector both in the domestic and international market. bolt seals is one of Ziwei's multiple product series. Ziwei security seal has an improved heat sink developed by our R&D team. The R&D team has carried out many experiments on the heat sink for years, and now we create optimized heat sinks which feature quick heat dissipation. Strict quality control ensures the higher quality of bolt seals in our company.

We combine our industry knowledge with renewable and recyclable materials. In this way, we are able to meet customer demand for environmentally friendly products.

