Produced in highly resistant PVC material, printed, as required by national and international law, with "DIVER BELOW".

By adopting the method, the diphenol monomers with a macromolecular structure can be polymerized with the binary acid monomer to obtain the highly heat-resistant and transparent polyester material.

Copper sheet is a kind of highly stable roofing and facade cladding material, requiring few maintenance. Copper sheets are environmental, safe, easy to be processed and highly corrosion-resistant.