Tangshan Changzhi Agricultural tools designing and manufacturing Co., LTD. (hereinafter referred to as Changzhi Agricultural tools), is a research and development enterprise, mainly producing hand tools and products for peoples livelihood. More than 80 technologies have been patented. Companys existing production equipments are independent research and development, not only environmental protection standard, also obtains the certificate of scientific and technological achievements and won third prize of science and technology in hebei province, one of the technology was patented in the United States authorized in 2014, the patent number is US8, 807,149 B2. One handle can be used on rake, pick shovel, hoe, forks, hook, spades and other kinds of hand tools, formed the connected standardization, Whether we use steel handle, fiberglass handle or wooden handle, it will not loose or drop out, especially the use of butterfly nut can make the changing and assembly fast. The structure technology on connection of handle and head also won the United States patent authorization in 2011, patent number is US7, 914,224 B2. The companys multi-function companion steel spade can be used to remove dust and frost on windshield, rescue, escape, and also can be used for mining, digging, building and constructing.  Company launched ice products this year include ice chisel, skating car , ice shovels, snow shovels, snow scraping and ice shovels,as patented technology products. These products are very popular after enter the market, especially the ice chisel and skating car are most popular among fishermen. The companys traditional products are mainly sold to Wal-mart, Bond, Stanley and other U.S companies, and also sold to Germany, Japan and Australia.