... Frequency Welded Light Gauge H sections for construction 2. Size: 70*50*2. ... 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 ... ships, the industrial furnace, container frame and warehouse shelves.8.delivery5-10 daysSpecification l ...