Rondex Thailand Co.,Ltd. A subsidiary company of Naigai Co.,Ltd. (a Japanese Apparel Company), was established in 1947 and has been manufacturing rubber thread for over 60 years. A new factory was established in Thailand in 2002. There are 4 Japanese staff stationing and producing “NDX” under strict quality control of ISO 9001:2000. We are striving to manufacture of high- quality rubber thread, reliable standard rubber thread with high technology.