... , BS, DIN, GB, Steel structure(rigid steel frame structure,light steel structure,famous steel structures)Quick DetailsStandard: ... (Mainland)Brand Name: NineHoopModel Number: NHSType: HeavyApplication: Frame PartPackaging & DeliveryPackaging Detail:as customer's requestDelivery Detail:discuss ... , high strength, large span3) short construction time, lower cost, time-saving and labor saving4) high fire ...