About Us Established in Year 2014, the core business of AC HARDENING CO., LTD. Is providing several heat treatment services, including thru-harden, carburizing, quench-and-temper etc. Our Head quarter AIK HONG HEAT TREATMENT (M) SDN BHD. are located in Pekan Nanas, Johor, Malaysia. and has been running Heat treatment business more than 20 years. AC HARDENING CO., LTD. (THAILAND) Head Quarter (MALAYSIA) Combined technology, experience and strict adherence to quality control requirement from head quarter, AC HARDENING CO., LTD. committed to archive goals and objectives to meet the needs and demands of customers to the highest level of satisfaction and strives to be a leading provider of Heat Treatment services and to ultimately fulfill customer satisfaction through:   In order to be recognized by the international quality standard, our company has been certified with ISO QMS 9001:2008 by Globalgroup of Companies Limited on December Year 2014.