1. The water flowing in the channel is turbid, there is water grass, what can be used to measure the flow rate? A: This situation uses the hardware business network information center) http://news.chinawj.com.cn
3014 Led Chip,Smd 3014 Led Light Strip,3014 Smd Panel Light,3014 Rgb Led Chip
Shenzhen Huangtai Photoelectric Co.,Ltd. , https://www.huangtailed.com