长条片状压电振子
Rectangular bar piezoelectric vibrator
微米长刨花
micron-thickness long particle
wood slice with micron thickness
竹大片刨片机
large slice bamboo flakers
large bamboo piece slicer
艾可泰牌排铅助长片
Aike tablet for lead-draining and growth promotion
奥长花冈伟晶岩
oligoclase granite pegmatite