Trelleborg has more than 20 years of experience in the production of buoyancy materials, and is the largest supplier of ROV buoyancy materials worldwide. It adopts special technology and design technology, and fills hollow glass microbeads with diameter of 20 microns and 150 microns with a proportion of 1, so that the proportion of buoyancy materials can reach 0.46~0.65, which is applicable to different working depth.

ISS is one of the world's leading suppliers of underwater buoyancy materials, and its special materials solutions are applicable to all kinds of harsh environments. The company's products have been successfully applied to various types of AUV,ROV and HOV, and provide overall buoyancy solution for 11000m deep sea manned submersible Virgin Atlantic.