All the steel are used the noted chinese steel plant products or based on the customer specific requirements or product them according to our chinese national standard. Availability size: based on the customerf+s requirements Color: silver white or based on the customerf+s requirements Package: wrapped with felt cloth or rubber mat and fix them by iron wire in case of collision or bump Terms of payment: l/c, t/t Capacity: 30, 000tons/year Delivery time: one month or based on the customers' needs Welded requirements: 1 we used co2 welding and submerged arc auto welding or other methods. 2 welded seam shall be full penetration and grinded.