... and stable material Die casting Valve Body( used in ships,marine,tractors)1. Standard or Nonstandard: Non-standard 2. Structure: Butterfly ... As per requirement1) Product name: Die casting Valve Parts used in ships,marine,tractors2) Materials: Cast steel3) Size: Complety ... 5) Surface treatment: Chrome plated, ZINC, Protective oil (black or clear), decorate etc.6) Certificate: ISO9001-2000, ISO9001-2008 ...