... 2) Standard and stable material Die casting Valve Body( used in ships,marine,tractors)1. Standard or Nonstandard: Non ... Dimension As per requirement1) Product name: Die casting Valve Parts used in ships,marine,tractors2) Materials: Cast steel3) Size: Complety ... etc.3. Quality Certificates: ISO9001-2000, ISO9001-2008 Quality Assurance System, the USA UL.4. Products covering hydraulic cylinders, pistons, ...