Hongshang Heat Shrinkable Materials (also known as 深圳市宏商材料科技股份有限公司 始, Shenzhen Hongshang Material Technology) is a company that designs, develops, and produces shrinkable and cast resin cable accessories. Its products include mastic tapes, wall and voltage tubing components, roll springs, armor clamps, copper wire meshes, etc. The company caters to electronics, automobiles, telecommunications, and other industries.