The supporting accessory system and fittings of Sanxin metal architectural system all have Sanxin patents, which are in strict accordance with the technical standards. It well combines the design advantages from other similar products, but has its own innovation. While assuring the use performance, it contributes good ornamental effects, including the purlines, standard canopy, skylight plate, roof ventilator, gutter and downpipe, wind-resistant cable or round steel, fasteners, thermal materials, vapor insulation veneers, roof connection sheet, gaskets and blocks, pipe flashing, coatings, doors, windows, window blinds, roof maintenance gangway, maintenance ladders.etc.