... 1/2 inch to 3 Item: stainless steel pipeBrand:QianchengOut diameter:21mm to 406 mmThickness:0.8mm to 8.5 mm ... pipe form 1/2 inch to 34 inch ,esp in large diameter .The surface and inside can be zinc coated and 3PE ... please EMAIL ME your specific enquiry, such as material, out diameter, wall thickness, length, quantity,, and our quotation will be forwarded ...