Kemgbe 1947, ISA International Sign Expo na-eme kwa afọ na America na Machị ma ọ bụ Eprel, ebe ndị ọzọ n'etiti Orlando na Las Vegas. Dị ka ihe ngosi kachasị na akara, eserese, mbipụta na ụlọ ọrụ nkwukọrịta anya, ISA Sign Expo na-adọta ọtụtụ ndị ọkachamara n'ụwa kwa afọ. Na ISA Sign Expo, ị ga-ahụ ihe ka ọtụtụ n'ime igwe na-emepụta akara na mbipụta nke ọgbara ọhụrụ.
ISA Sign Expo 2019 ga-eme site na Eprel 23 ruo Eprel 26, 2019 na Mandalay Bay Convention Center na Las Vegas, Nevada.
Igwe na-ebi akwụkwọ UV na-ewu ewu na-ewu ewu na ụlọ ọrụ obibi akwụkwọ, karịsịa ndị nwere nnukwu usoro. Iji gbochie UV LED n'ime igwe obibi akwụkwọ nke UV ka ọ ghara ikpo oke ọkụ, S&A Teyu ụlọ ọrụ mmiri chiller igwe nwere ike inye mma dị mma maka UV LED.
S&A Teyu Industrial Water Chiller Machine maka Iju UV LED Light Light
