with?abrasive?belt?of?grit?#150-#180,have?better?brightness?with?discontinuous?coarse?stria,?but?thinner?than?No3,?are?used?as?bathtub?buildings?inner?and?external?ornaments?electrical?appliances?kitchen?utensils?and?food?processing?equipment?etc.?HL:olished?with?abrasive?belt?of?grit?#150-#180,have?better?brightness?with?discontinuous?coarse?stria,?but?thinner?than?No3,?are?used?as?bathtub?buildings?inner?and?external?ornaments?electri