Sanzhuji has obtained many technical breakthroughs and invention patents in molding sand casting industry during the development process of more than ten years, including ISO9001 certificate and EAC certificate of EU, etc. Meanwhile, Sanzhuji is a member of the Council of China Foundry Association, and has been respectively awarded Famous Brands in China. The national product quality notarized ten brand, quality is a reliable Enterprise, AAA Quality Service Integrity unit, AAA grade overlap with The same trustworthy Enterprises, AAA Credit Enterprise, etc. Our company has its own permanent offices in the heavy industry provinces in China. In the future, we will consider setting up offices or distribution agents in the global foundry industry park to facilitate the technology maintenance of old customers and the continuous development of new business.