Shanghai Douwall Environmental Protection Equipment Co.,Ltd. was founded in 2010. Our headquarters is located in Shanghai. For years, Douwall has been working hard on cleaning equipment with high quality.DW Company is a cheaning equipment in designing,manufacturing and marketing solutions that helps customers save cost and keeps machine longer life. DW creates solutions that are changing the way to the world cleaning. DW products include equipment used to maintain indoor surfaces.Since 2011 DW company has begun as an after sales market business,and cleaning machine designing throughout its history . DW has remained focused on advancing its industry by aggressively pursuing new technologies and creating a culture that celebrates innovation.The D means we can do it, the W means we make high quality products.The DW product brand helps you be a leader in creating healthy, safe and attractive environments for the people and places in your case.