I-YG20 iwuhlobo lwe-carbide enosimende, ikakhulukazi i-tungsten carbide.Ayitholi ukwelashwa kokushisa, inobunzima obufanayo bangaphakathi nangaphandle, futhi ifanele ukukhiqizwa ngobuningi.I-YG20 ilungele ukwenza isikhunta sokunyathela, njengokugxiviza izingxenye zewashi, amashidi entwasahlobo ensimbi yomculo, njll.,...
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