
Li Tonglian International Group has started With a strong commitment to quality , customer satisfaction & integrity , designing and manufacturing Hot Rolled Seamless Steel Pipes in 2003 , annual production capacity is 250,000Tons . Outside Diameter Range of pipes is from 21.3 ~ 711.3mm and Wall Thickness Range is from 2mm ~ 59.54mm .The pipes being designed and manufactured by our company have received API 5L , API 5CT monogram certificates , ISO 9001 Quality Assurance Certificate , OHSAS 18001 Occupational Safety and Health Administration Certificate ,ISO 14001 Environment Management Certificates etc. [
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