Quality TECHNOLOGY R & D 1. Supply system and control system of spray water for degreasing production line 2. Energy saving system and control system of steel strip production line 3. A degreasing electrode plate used in electrolytic sections of steel plate washing lines 4. A support block for the heat treatment of steel 5. A roll-changing device for rolling machines 6. A real time adjustment equipment for the roller of levelling machine 7. A constant pressure control system of automatic adjustment of frequency in cooling tower that can be shared by two units 8. A control system of temperature monitoring and over-temperature alarm for the room of rolling machines 9. A graphite converter with automatic flushing function 10. A downward cooling device for cooling tower of galvanized steel line 11. A remote network monitoring system for cold rolling equipment HUAJIN CERTIFICATIONS Guangdong Province Engineering Technology Research Center Production and Research Institution (Jiangmen Polytechnic) Certificate of High and New Technology Enterprise ISO9001:2008 Certification(English version) ISO9001:2008 Certification(Chinese version) AAA grade rating on Good Standardizing Practice Certificate ISO14001:2015 Certification(English version) ISO14001:2015 Certification(Chinese version) Certificate of product quality 2014 Certificate of product quality 2013 HUAMU CERTIFICATIONS Guangdong Province Engineering Technology Research Center Certificate of High and New Technology Enterprise ISO9001:2008 Certification(English version) ISO9001:2008 Certification(Chinese version) AAA grade rating on Good Standardizing Practice Certificate ISO14001:2015 Certification(English version) ISO14001:2015 Certification(Chinese version) Certificate of product quality 2014 Certificate of product quality 2013 QUALITY TESTING Spectral analysis of products chemical contents Inspection on the hardness of products Inspection on the utility and expansibility of products Inspection on the chemical composition of products