The product is made from a state-of-the-art, 5 axis CNC engraving machine facility, coordinated byPattern Master engraved by high-performance CATIA 3D software editor, with special processing technology for reproduction of gypsum mold before it is processed with precision low-pressure casting technology, the quality of the Tread Pattern of the finished product is sure to satisfy the required precision and specifications, either Segmented type or Two piece type.