Our factory mainly produce carbon/alloy seamless steel pipes.Main SPEC. is API 5L,API 5CT J55/N80,A106 GR.B,DIN and etc. Size range:OD 2inch to 5-1/2inch. If you are interested in our products,please contact with me. ---------------------------- sales manager:lulu factory:SHANDONG HUABAO STEEL PIPE CO.,LTD tel/fax:0086-539-8632313 mobile:13853939574 business:tubing,casing,line pipe,alloy steel pipe,carbon steel pipe,stainless steel tubes SPEC: API 5L,API 5CT, ASTM,DIN and ect. ----------------------------