... 4. Antiseismic 5. Light weight Hangzhou Weidu Steel Structure Co., LTD is located in Tonglu, Hangzhou and occupys an area ... (GP, HC, OT etc.)Hangzhou Weidu Steel Structure Co., Ltd is a privately-owned steel construction company of limited liability ... China material standard3.Application scope:workshop, warehouse, and other industrial facilities..4.Advantage:Steel structure: light weight, high ...