SF2000三鍵大屏數(shù)顯卡尺帶數(shù)據(jù)接口 任意位置清零 測量單位轉(zhuǎn)換（mm/inch) 大型清晰的液晶讀數(shù)顯示 SF2000三鍵大屏數(shù)顯卡尺帶電源開關(guān)
