1- Q245R,Q345R BOILER STEEL 2- safety vavles and fire-proof vavles 3- no pollution 4- the best quality with good price We mainly make four models of the plastic refining machine:The raw material for pyrolysis plant as follow:1, Industrial waste , allow multiple waste mixed simultaneously (more than 70%, but suggest PE, PVC less than 10%)2 Waste oil , for example: waste machine oil, waste oil and ...