提高商品档次 meaning in English

improve commodity quality

China commodity city exhibition center of import and export commodities , zhejiang china commodity city group inc . approved by the municipal government established the showroom , designed to attract more foreign investors to china commodity city for business talks , commodity procurement , the promotion of small commodities exports , raising commodity grades , and to expand with the world trade body , merchants and business links
中国小商品城进出口商品展销中心，是浙江中国小商品城集团股份有限公司经市政府批准而设立的展销机构，目的在于吸引更多外商来中国小商品城进行商务洽谈、商品采购，促进小商品出口，提高商品档次，扩大与世界各地外贸机构、商家的业务合作及联系。