{
   "Company" : {
      "Address" : "QString",
      "Contacts" : "QString",
      "ManagementBrand" : "QString",
      "ManagementType" : "QString",
      "Name" : "QString",
      "Phone" : "QString",
      "Region" : "QString"
   },
   "Material" : {
      "BrandName" : "QString",
      "CompanyPos" : "int",
      "Grade" : "QString",
      "MainUnit" : "QString",
      "Memo" : "QString",
      "Name" : "QString",
      "OtherUnit" : "QString",
      "Price" : "double",
      "QuoteTime" : "QString",
      "Spec" : "QString"
   },   
   "Parameter" : {
      "Property" : "QString",
      "PropertyValue" : "QString"
   },   
   "StandardMaterial" : {
      "MaterialPos" : "QString",
      "Name" : "QString",
      "ParameterPos" : "QString",
      "Spec" : "QString"
   }
}
