4在场馆内使用镭射笔、闪光灯等干扰比赛的设备。
4 use Laser pen, flash or any other facility or device to interfere with the Event in the Venue.
定做礼品笔，金属笔，广告金属笔，金属圆珠笔，笔厂订做，金属签字笔，钢笔和灯笔，镭射笔可雕刻文字及标志。
Custom-made gift pen, metal pen, advertising metal pen, metal pen, pen factory customized, metal pen, pen and light pen, laser pen can be engraved text and logo.
应用推荐