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Mpempe mmanụ mmanụ API bụ maka igwu mmiri miri emi yana ọnụ ahịa mbelata
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Bọtịnụ mmanụ ala API n'ogbe nwere ọnụ ahịa mbelata na ngwaahịa
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Mkpụpụta mmanụ tricone bit maka igwu mmiri miri emi
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Ụlọ ọrụ API nke rọba ekpuchiri mmanụ na-agbapụta ihe
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Ụlọ ọrụ China API nke ọma mmanụ miri emi maka nkume siri ike
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Ụlọ ọrụ API nke eke gas tricone rock drilling bit