Vandan Steel & Engg. Co. It can become a recognized industry and supply high-quality ROCKSTAR 500 blades. As a customer-oriented industry, we offer these boards in various standards, widths, lengths, heat treatments and styles. Specifications for special applications also are provided, and our products have passed various quality standard certifications. The wear-resistant welded metal plate ROCKSTAR 500 PLATTEN has good general properties like formability, hardness, wear resistance and flatness.