OIML类型标准权重，单F2级 +等级4 50mg + JCSS校准证书（新集合）

OIML type standard weight, single F2 grade + rank 4 50mg + JCSS calibration certificate (new set) [Features] ●Complies with OIML (International Lawyer Metrology Agency) R111 and complies with the Japanese industrial standard "JIS B7609:2008" ●F1, F2, M1, and M2 grade weights have the new JIS mark (a sign that complies with JIS standards). （JIS不覆盖E2的重量）●由非磁性不锈钢，镜像饰面（E2，F1，F2等级）制成，机械饰面（M1，M2级）●20kg-1g：20kg-1g：圆柱类型20kg-5kg（在铝制情况下）