Material: J55, K55, N80, L80, P110, L80-13CR, P110-13CR, L80-9CR, l80-1cr
Thread: STC, LTC, BTC
Standard: API 5ct
Size: 4-1/2-20"
Wall thickness: 5.21-16.13mm
Contact:Bonnie Xu
Email:BonneXu@dlpoctg.com
Mob/Wechat:86+13602055205
SKYPE:BonnieXu22
Linkedin:BonnieXu
