Product Specification Product Name: ERW steel pipes Diameter: 219-610 Thickness: 4.5-16mm Length: 6-12m/ pcs Standard: API Spec 5L, API Spec.5CT, GB/ T9711.1/ 2 Grade: GB/ T9711: L210-L485, API 5L : A-X70 External Coating: 2PE, 3PE, FBE Internal Coating: Cement or bitumen Application water pipes, oil and gas pipes, casing, structural steel pipes, drilling pipes Optional Information - Payment : L/ C - Delivery : sea shipping - Origin : GuangZhou, China - Minimum Order : 100 ton - Packaging : bulk - Inspection : to negotiate - Samples : Free