... resistance: contributes to our unique formula,our products have a very high corrosion resistance;Fireproof performance: our products are ... ;With adhesive gaskets: make our doors and windows have a high sealing performance;Simply assemble: Supporting, versatility, strong interchangeability ... , and generally fixed welding margin of 3mm, heating I welded a pressure of 0.4 MPa, welding packing time 30s ...