I-burp drill bit isihluthulelo sokwenza kahle, ukunemba, kanye nokuphila isikhathi eside kunoma yikuphi ukusebenza kokumba. Noma ngabe ekukhiqizeni kwezimboni, ukusetshenziswa kwensimbi, noma ukwakhiwa, ukulondolozwa kwezingcezwana ezibukhali kahle kuqinisekisa ukusikeka okuhlanzekile, ukumba okusheshayo, nokunciphisa ...
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