China Vigor's O-Ring Seal Subs are ready to deliver to our customer, more details as below:
O-Ring seal subs, BTC thread, L80, Size:2.875'', W/4.50'' 12.60 LB/FT, BOX x PIN, Material: AISI4140 (42CrMo) Mod L80 22 Max HRC 80 KSI MYS NACE, Length: 15 inch, without O-Ring.