... 1629 st45 seamless pipe for water Marking :P/O No,SPEC. Grade,Size, Heat No.or according requirement;Payment term :T ... at the ends or as per customer requirement.UsageThe products are widely used in fertilizer, petroleum, centra-station, boiler, powerstation, ... the tust of customers,and technology satisfies the market demand." We are based on"First-class technology,and high-quality product,Lower ...