ColorTop Digital Printing Equipment ( Shanghai ) Co., Ltd . is the branch company of Sansin Group which

is well - known as the origin of offset presses in China.Sansin Group is with morethan 40 years production

experience since the first small offset press was designed and produced and it is the leading manufacturer

in the Chinese Offset Printing Industry . ColorTop is trying to discover the applications of digital printing

technology in other industries which have not ...