Od:21.3-219.1mm, thickness:2.8-20mm, length:6-12m, main material is q235, q345, 16mn.And we can produce as your request. All the production process are made under the iso9001:2000strictly, our company is specializing in the galvanized pipes, welded pipes and other pipes. We can also process steel pipes according to our customers' orders. Our products are mainly applied to many fields such as construction, furniture, scaffolds, petroleum, and coal gas, natural gas, heating power stations, high-pressure hydropower stations and more. The quality of our products is trustworthy. We use cif or cfr, and we can guarantee that our products are of high quality and reasionable price, and we can make delivery as soon as possible! As your request