A.粘附性好 B.粘附性差 C.使用的是堿性礦料 D.使用的是酸性礦料
A.13.2-19mm,9.5-13.2mm B.9.5-13.2mm,13.2-19mm C.13.2-16mm,9.5-13.2mm D.9.5-13.2mm,13.2-16mm
A.175℃ B.170℃ C.180℃ D.160℃