日本工业标准_JIS B7220-1982 Magnetic Stripes and Magnetic Recording Head Gaps for Sound Record on 16mm Motion-Picture Film Perforated Along One Edge-Positions and Width Dimensions_
copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有备案/许可证编号:苏ICP备17064731号-1