Tianjin Huilitong Steel Pipe in China specialized in manufacturing LONG WELDED ERW PIPES and Large Diameter Spiral-welded steel pipe over 15 years.
Tianjin Huilitong Steel Pipe has been approved by API 5L(License Number:0654), ISO9001-2008,Lloyd's Register-FPC(EN10210-1/2,/EN10219-1/2,EN10217-1),PED 97/23/EC,Lloyd's Register Quality Assurance.
