API5B Tubing & casing coupling

1.Grade:J55, K55, N80-1, N80-Q, L80, C90, P110 2Size: tubing coupling from 1.9" to 4-1/2",Casing coupling fro4-1/2"to 13-3/8" 3.Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling). 4.Packing: By carton, wooden case, wooden pallet, or by requirements of customers We sincerely welcome you to contact us at any time if you are interested in any of our products. Contact:Bonnie Xu Email:[email protected] Mob/Wechat:86+13602055205 SKYPE:BonnieXu22 Linkedin:BonnieXu