Schott N-BK7 Glass
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bk7 slot BK7 Cute, KTV microphone, BT , 1200mAh battery for 8 hours of work, support TF card BT playback modes, variety of funny sound effects
N-BK7 is a Schott designation for the most common Borosilicate Crown glass used for a wide variety of visible applications bk77 slot BK7 is a standard glass for all kinds of optics The SCHOTT glass is nearly bubble free, has an excellent clarity, and a very low amount of inclusions
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bk7 slot BK7 Cute, KTV microphone, BT , 1200mAh battery for 8 hours of work, support TF card BT playback modes, variety of funny sound effects
bk7com สล็อต N-BK7 is a Schott designation for the most common Borosilicate Crown glass used for a wide variety of visible applications
BK7 is a standard glass for all kinds of optics The SCHOTT glass is nearly bubble free, has an excellent clarity, and a very low amount of inclusions