1, Size: 323.8 x 11.13 x 10000-12000mm API 5L X52 PSL1 Carbon Line Pipe 2. Grade: X52,the product analysis and melting analysis are conformed to  API Spec 5L PSL1 3.Bending:4mm/M,Overall Length:≤2‰ 4.Processing for the end of the pipe:The pipe end beveling shall not exceed 1.6mm 5.The surface quality of line pipe:the inner surface of line