Residential building apartments builders and commercial multi-storey steel buildings contractor in china Quick detail: Chinese residential building apartments builder and contractor, skyscraper, high-rise apartment blocks, architecture design, engineering consulting firm, structural steel high rise buildings, made of steel and glass, china fabricated. Specifications Grade: q345, q235 Products&service scope: high quality design&engineering service, steel building, space frames, portable cabins, tubular steel structures, basic building elements(built-up welded h-section , hot-rolled h-section, channel, steel column, steel beam), standard frames, secondary framing, roof & wall materials, tempcon (sandwich) panels. And we offer bespoke design, construction and erection of specialist industrial steel buildings and steel frame agricultural buildings including full structural design and build covering all aspects of steelwork prefabrication. Engineering design software: pkpm, 3d3s, x-steel, etc.