Jiangsu Global Laser Box Digital Technology Co ., Ltd .( English name : GLB , hereinafter referred to as " Global Laser Box ") is a provider of smart factory solutions for metal 3D printing . Utilizing self - developed industrial - grade SLM ( Selective Laser Melting ) metal 3D printing equipment and software , the company supplies metal 3D printer and products to its clients . Its primary applications include high - end dental , industrial molds ,"3C"( Computer , Communication , Consumer Electronics ), aerospace , and other fields , supporting large - scale production . Currently , the company operates two SLM metal 3D printer production bases in Yancheng , Jiangsu province and Changde , Hunan province , as well as four 3D printing service bases in Wenzhou , Zhejiang province ; Changde , Hunan province ; Yancheng , Jiangsu . The total floor area spans approximately 20,000 square meters , with around 160 employees , of which about 21% are R & D personnel.