Profile   　　Our company primarily manufacture a variety of sight glass, liquid level gauge, tubing and other apparatus made of quartz. We also sell various types of borosilicate, strengthened glass, silicon-aluminium glass and cobalt glass (blue). 　　Following the development of semiconductor industry, we introduced advanced quartz processing apparatus & inspection instruments for the development & production of various quartz products from 3“-6”. We have paid more attentions to the R&D of quartz products, established favorable cooperative relationship with Quartz Glass Research Institute of China Building Material Academy & introduced a group of skillful technicians & employees. 　　With superior production environment & technical force, we are confident to provide satisfying products for our clients.   Add: 200, Wuyi Road, Shahekou District, Dalian, China Tel:0411-84672714、84686171 　Fax:0411-84686171 E-mail:office@dl-ld.com