Shandong GRED Medic Co ., Ltd ( former Weihai Muramastu Medical Products Co ., ltd ) located in weihai city , Shandong province is a high-tech enterprise with scientific research , production , marketing and service. The company is mainly engaged in medical devices ,whose major products consist of neurology drainage devices , puncture instruments ,neurosurgery instruments , bio-medical dressing , newborn care products ,etc. The company has total assets of about 142 million and 968 employees , including 149 senior technical personnel . Dozens of products and technologies of ISO 13485:2003 quality system and ISO 9001-2000 quality system in medical device industry . The company has established stable business relationship with more than 3600 hospitals in China. In 2010, the company entered the filed of biotechnology. And through cooperating with the well–known domestic universities and doctors returning from U.S., the company developed nano-PCR Kit series products , which reach the international advanced level.