... ISO&CE 4.PLC control QT8-15 hollow brick making machine in Algeria 1. Introduction of company Shandong Hongfa Scientific Industrial ... to more than 76 countries and regions includingUSA,Russia,Korea, Australia,Brazil,Argentina,India,Thailand,Vietnam,Sudan,Bangladesh ... diagnosis system.3.Control system: PLC intelligent control. Man-machine interface, control system equipped with complete logic control, ...