LOGIN DAFTAR SITUS BK7 BOOKIE7 ALTERNATIF DOMAIN

bk7 slot  Uncoated and AR-Coated Versions Available · Laser Quality Polished Surfaces · N-BK7 Optical Glass  Knurled knobs with coin slot Standard material Polyamide Thread Steel zinc plated moulded Special thread inserts upon request Standard color Black

BK7 Cute, KTV microphone, BT , 1200mAh battery for 8 hours of work, support TF card BT playback modes, variety of funny sound effects  BK7 and N-BK7 are high purity, low cost borosilicates with excellent optical properties, making them a frequent choice for optics, prisms, and windows

BK7 optical glass OPTIMUM TRANSMISSION RANGE 350nm BK7 wafers are excellent for optical chromatic lens BK7 produces pristine color at all wavelengths with superior purity & superior optical performance