1:type: 5 1/2" P110 tubing collar 2:thread:EUE/NU 3:grade:K55 J55 L80 N80 4:packing:wooden box,pallet, case,carton.Contact:Bonnie XuEmail:BonneXu@dlpoctg.comMob/Wechat:86+13602055205SKYPE:BonnieXu22Linkedin:BonnieXu Hot Tags: api 5ct 5 1/2 p110 female thread casing collar for oilfield, China, manufacturers, factory, in stock