Ụlọ ọrụ anyị bụ ọkachamara na API Spec-5CT petroleum pipes. Ahịa nke nkọwa dị iche iche nke tubing shorting, thickening tubing shorting, casing shorting. Ugboro abụọ mkpirisi mkpirisi, elu voltaji mkpụmkpụ okirikiri. Ngwunye eriri mmiri na-agbanwe agbanwe, nkwonkwo ihe na-ebelata tubing, ihe nkwụnye tubing, eriri mmanụ / casing (okpu mkpuchi). Na dị ka eserese, anyị nwere ike hazie ụdị nile nke pụrụ iche shorting, couplings, ọkpọkọ oyiyi akwa, wdg Product ọkwa: J55, K55, N80, L80, P110.
Nkọwa maka akụkụ dị mkpirikpi nke tubing mmanụ ala: 1.66 ”—- 4-1 / 2″ (33.4–114.3) mm.
Nkọwa maka akụkụ mkpirisi nke mkpuchi mmanụ ala: 4-1 / 2 ″ - 20″. (114.3 - 508) mm