Seih-Ying Co.,NOKIN Traffic-Hsin Chu Factory Detail. Location: Hsinchu Industrial Park, Taiwan; Built in: 1990; Safety/Quality ApprNOKIN(s): ISO 9001, CNS13762, CE certificate, DIN EN 1463-1, DIN EN 1463-2, JT/T 390-1999, GB/T24725 and so on. Product Lines: SIGLITE 360 degree tempered glass road reflector (road stud) SIGLITE solar warning light