shenzhen qianhuilai Co.,Ltd is founded in 2015, located in Shenzhen City, Guangdong Province China . It is a professional and technical enterprise integrating R&D, production and sales. Our company adopts advanced optoelectronic technology, focusing on gas detection and dust detection, and is committed to providing overall solutions and technologies for safe production. We can provide system solutions for various industries, design and consulting services. "Quality is our culture."Our regular products can be customized in various colors, We provide one-year warranty and lifetime service for customers.Accept third-party inspection service to guarantee quality and quantity for you.We can deliver conventional products in 15 days at the soonest