connector BOX * PIN in thread,casing pipe thread protectors

Specification: Oil tubing thread protectors:1.315:-4-1/2" casing pipe thread protectors:4-1/2"-20" Thread connection:EUE NUE STC LTC BTC If you have any inquiries about that please send us, We will promised you can receive best service from our side and please remember our Motto is Trustable Business I await for your inquiry. About Production 1,API 5CT--CASING Grade:J55,K55,N80-1,N80-Q,L80-1,P110 Threaded buckle type:LC 8rd,STC 8rd,BTC Size:4 1/2",5",5-1/2",6-5/8&qu