Its business mainly covers the import of all machinery as well as export of cereals , oils and foodstuffs , native products and animal by - products , light industrial products , machinery and equipment , meters and instruments and chemicals 主要承办各类机械设备、仪器仪表、交通运输工具和设备、建筑装饰材料和日用百货等的进口业务；经营粮油食品、土畜产品、轻工产品、机械设备、仪器仪表及化工产品的出口业务。
Jewelers and precious stone and metal workers use a variety of common and specialized handtools and equipment to design and manufacture new pieces of jewelry ; cut , set , and polish gem stones ; and repair or adjust rings , necklaces , bracelets , earrings , and other jewelry 宝石首饰设计制作人员使用各种普通和专业的加工工具和设备来设计和制作新款的宝石；切割、制模、磨光宝石；修理和调整戒指、项链、手镯、耳环以及其它珠宝首饰。
