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. And manufacturing requirements.