Key Specifications/ Special Features: Materials: carbon steel or stainless steel Processing: slotting, splice, welding, and finishing operation Features: Cost efficient: it saves on materials compared to other structures of the same load Easy installation: it could be fixed with blot or by welding without further processing required in the work field Lightweight structure Easy to maintain: with its cost saving opening, it maximizes the circulation of air, light, heat, water, and sound, no need of cleanness Durable: the bearing bar and crossing bar form a permanent joint under a combination of pressure and welding