每船货物需经瑞士通用公证行进行认证，并让其出据样品检验如重量、化学成分、货物形状且货物无放射性的书面证明。
SGS will inspect a representative sample of iron ore for each shipment and will issue a written certificate of weight , chemical contents , physical size and no radioactivity ;
瑞士通用公证行