Sizes : all sizes from ( 2 1/16“ to 4 ½ “ ), toAPI 5CT in lengths.
Grades : H40, J55, K55, N80, L80, C90, P110, V150,13chrome.
Special grades can be supplied for deep well services.
Threads: API round threads or Metal to metal seal .
Non-upset , External upset , Internal/External –upset
( NUE , EUE , IEU ) , and CS-hydr.for gas wells better seal.