A.50~100mm B.100~200mm C.200~300mm D.300~500mm
A.滿粘法,250mm B.焊接法,250mm C.滿粘法,200mm D.焊接法,200mm方形
A.基底膠 B.搭接膠 C.熱瀝青膠 D.有機(jī)膠