Yanzhou Yaohui Solar Co.,Ltd locates in Yanzhou city,Shandong province, which is a large-scale and privately operated enterprise. It owns a subsidiary company: Dezhou Yaohui Solar Co.,Ltd . The company covers an area of 130,000m² and mainly engages in the production of borosilicate glass products. The main products are 3.3 borosilicate glass tubes used for solar water heater, machine-blowing hard bulbs and sealing glass tubes . the company owns fixed assets of 500million yuan in RMB and enjoy a regular staff of over 2 ， 000 ,of which 150 are intermediate and senior engineers and technicians. The company has passed the certification of the ISO9001 and ISO14001, and owned the rights of import &export.