1, respiratory inhalation - through the lungs into the blood circulation 2, skin penetration - through the skin into the body 3, digestive tract ingestion - enter the body through the mouth 4, irritate or burn the eyes This article is a reprint of online media. It only represents the author's point of view. It has nothing to do with this site. If news articles and comments infringe your legal rights, please call us and we will handle it in a timely manner. Tool carts are favorable due to lower price and large storage space. Big power tools can be stored on shelves. Drawer Tool Cart,Service Tool Cart,Utility Tool Cart,Drawer Utility Cart Changzhou Xingsheng Tianhe Electric Appliance Co., Ltd , https://www.roller-tool-cabinet.com