秋霞在线观看一区二区_69国产精品|HD中文字幕在线播放,王色片,少爷总攻扒开双腿猛烈高h,国产精品久久一区

■ Both the audible alarm and LED lights alarm  to ensure the accuracy sorting material.
■Especially suitable for a variety of small  grain materials.
■Alarm threshold 0.1ohm.cm, 0.5ohm.cm, 1.0 ohm.cm, below the set threshold, then alarm.