A new type of casting product, the castings for Perkins Engine Block, have been approved after testing every performance.A new type of casting product, the castings for Perkins Engine Block, have been approved after testing every performance.A new type of casting product, the castings for Perkins Engine Block, have been approved after testing every performance.A new type of casting product, the castings for Perkins Engine Block, have been approved after testing every performance.A new type of casting product, the castings for Perkins Engine Block, have been approved after testing every performance.A new type of casting product, the castings for Perkins Engine Block, have been approved after testing every performance.A new type of casting product, the castings for Perkins Engine Block, have been approved after testing every performance.