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Ụlọ> ngwaahịa > Ngwa Casing > Ihe nkwụnye mbanye casing
Ihe nkwụnye mkpuchi mkpuchi maka Rotary Drilling rig
Casing Twister maka Nkeji Casing Liners na-ewu Shaft a kpụrụ akpụ
Ụgwọ nke ụlọ ọrụ Kimdrill Piling (Changsha) Co., Limited Amụma nzuzo Usoro na ọnọdụ