... stainless steel 3,Without pollution 4,small investment ISO9001&BV support waste/used tyre refinery plantHuaHong refining equipment features :1, ... earth;5, HuaHong refining equipment process is advanced, for air, water, and the surface does not produce any pollution;6, HuaHong ... directly. In our process, it is transferred first through a water close device and a safety device- burning air muzzle. ...