We specialized in OCTG products,and TTGM NIGERIA LTD is Branch of Tianjin Dehua Petroleum Equipment Manufacturing Co. Ltd (In China),I got your contact info from web,hoping to establish business relationship with your company,the following is our brief introduction: Main products( API standard):Tubing : Size 2-3/8〞~ 4-1/2〞Casing : Size 4-1/2〞~ 20〞Drill pipe : Size 2-3/8〞~ 6-5/8〞Line pipes & Downhole motorWe also research and develop Non-API standard TD series casing,tubing and drill pipes. Production CapacityTTGM covers 300,000m2 areaa and owns production lines with annual capacity of 400,000 metric tons casing and tubing,20,000 metric tons drilling pipes,and 100,000 metric tons heat treatment for full length pipe. Certificates ＊ISO 9001:2008＊API 5CT,5DP and 5L certificate＊H.S.E and OHSMS certificate＊Certificates issued by customer