The sash comes standard with seamless welding. Cavity structure. The wall thickness of the product is 2.0mm. The true broken bridge isotherm is perpendicular Standard 5mm+20A+5mm Xinyi glass tempering Italian Simaya full set of hardware handles 6063 aerospace grade aluminum Optional escape test fence Hidden drain drain test drainage The opening position of the true sub-frame can be detached and installed Fall-proof floor-to-ceiling wire chain configuration One-piece bent hollow aluminum strip 304/4.0 thick heavy chain Original ecological GB/PA66 heat insulation strip Automotive-grade EPDM composite adhesive strip.
