Guangzhou Botai Optical Visor Co., Ltd. is the new name of Yaohui Optical Visor Factory. Since 2002, we now have become the leader in lens & visor optical products manufacturing. Our products are shipping in China and all over the world. Our factories are ISO9001:2000 and BSCI certified and we have internal lab for testing our product to the most difficult norm in the world such as CE, ECE22-05, SNELL or DOT. We have 4 successful factories: Visor Factory: We are the No. 1 helmet visor ...