Luoyang Guo&＃039;ao Heavy Duty Machinery Co., Ltd. (Luoyang Huayu Briquette Equipment Factory) is located at the intersection of National Highway 310 and Luoyang Round-the-city Expressway, Luoxin Industrial Park, Luoyang- the ancient capital of 9 dynasties. It is the biggest enterprise in China specialized in process design, equipment manufacture, and bonding agent technological service of 30~500 thousand tons throughput per year whole set of briquette production line and mineral powder molding production line. Endowed with complete quality system and after-sale service system, it is the national designated unit of foreign aid project of briquette technological reformation. In 2004, Briquette Analysis Lab and Briquette Equipment Institute were founded, and hi-tech briquette inspection equipment was introduced. According to requirements of briquette application on physicochemical index, bonding agent and additive of different types and components are *****