There are more than 40 franchisers in whole world are involved in agency on long term basis for water levels business of SETL . With years of market exploitation, our monthly production capability has exceeded 500 sets and our company has began to make preparations for the research of electronic tachometer. ¡¡¡¡ From 1999, SETL has shifted its priority towards the research and production of laser profiler. Now, SETL has developed series products such as 4V1H1L,3V1H1L,2V1H1L, which have achieved great success after trial sold in South Korea, Japan and Taiwan as well as Asian-Pacific Areas. Korean Glory Co.,Ltd. is a major agent of SETL in South Korea. ¡¡¡¡ The water level and laser profiler are the leaders of Chinese market with sales volume ranking top among the industry, which is the good reflection of SETL`s high quality.