API 5-1 / 2 ″ LC FLOAT COLLAR MANUFACTURER KOOBAN OO KOOBAN
1. Kursiga valve iyo valve disk ayaa si wax ku ool ah uga horjoogsan kara in gumaarku soo noqdo.
2. Saxanka degganaan-rogida ayaa la heli karaa haddii la codsado.
3. Ama PDC ama dhagaxa wax lagu qaso.
Fariintaada halkan ku qor oo noo dir