Cov khoom muaj qhov zoo ntawm qhov chaw, du thiab burr dawb, muaj zog adaptability, tsis muaj deformation nyob rau hauv - 45 degree ib puag ncig, tsis muaj desoldering, tsis muaj xeb, tsis muaj tshuaj lom thiab saj, du nto, tsis muaj khawb, tsis muaj burr, ruaj thiab ruaj.