Definition of manufacturer:
A person or corporate body (legal person), who manufactures cast parts.

In contrast to that, a purchaser is a person or corporate body (legal person), who places an order with the manufacturer.

Binding order information must and/or additional optional order information may be agreed between the manufacturer and the purchaseer at the time of order (see Order, Order ).

Literature references:
EN 1559-1:1997, Founding - Technical conditions of delivery - Part 1: General
DIN EN 10204:2004, Metallic products - “Types of inspection documents”