Casing, Tubing Coupling, Brand Name : DLPOCTG

We are offering casing, tubing coupling. 1.grade:j55, k55, n80-1, n80-q, l80, c90, p110 2.we also supply permium thread products by customer's request 3.size: tubing coupling from 1.9" to 4-1/2",casing coupling fro4-1/2"to 13-3/8" 4.type: nu, eu(tubing coupling), stc,lc,btc(casing coupling). 5.surface treatment: whole phosphating, or inside phosphating and outside coating 6.packing: by carton, wooden case, wooden pallet, or by requirements of customers