1. High Frequency Welded Light Gauge H sections for construction 2. Size: 70*50*2.3*2.3-500*250*8*10 3. delivery time:3-10days High frequency welded light gauge H Sections for contruction 1.standardGB/T 1591, GB/T700, ASTM, EN, DIN2. Steel gradeST37, A36, SS400, ST52, SM490, SM5703. Length6METER, 9 METERS, 12METERS or customized.4. packingBlack painting and in bundles5. shippingBy bulk cargo or ...