Our company devotes itself to providing all kinds of premium threads such as DL J series which have the same performance with VAM series, TENARIS HYDRIL series, HUNTING series, JFE series .The sizes that we can provide range from 1.66 inch to 20 inch, Steel grade including K55, J55, L80, N80, C90, T95 and P110. Furthermore we can also provide the accessories of casing and tubing, like pup joints, nipples, crossovers, drift gauges etc. We really appreciate every chance which can make us establish a pleasant business relationship, just remember high quality is our life , competitive price is our principle ,good service is our base , if you have desire for purchasing call me will all right ,in my mind freedom is the only rule to enter  into a mutual benefit world .ARE YOU READY?