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EROGLU BT30 ER16 A100 夹头，JD 型
NO-GO thread ring gauge M62x1.5 6g left-hand thread
NO-GO thread ring gauge M39x1.5 6g left-hand thread
NO-GO thread ring gauge M82x2 6g left-hand thread
NO-GO thread ring gauge M11x0.5 6g, left-hand thread
Thread Plug Gauge M16x0.5 6G
NO-GO thread ring gauge M72x2 6g left-hand thread
NO-GO thread ring gauge M22x2 6g left-hand thread
ATORN 夹头 ER16 UP，直径 6.0 毫米，密封，同心度 2 微米
NO-GO thread ring gauge M55x1.5 6g left-hand thread