... alloy high strength structural steel Q235B and High Frequency Welded Light Gauge H sections 2. Size:70*50-500*250 High frequency welded ... Length6METER, 9 METERS, 12METERS or customized.4. packingBlack painting and in bundles5. shippingBy bulk cargo or container6. payment100% ... , the ships, the industrial furnace, container frame and warehouse shelves.8.delivery5-10 daysSpecification l mmkg/mmmkg ...