请帮忙指出这句英文的语法错误,
问题描述:
请帮忙指出这句英文的语法错误,
Our company,which is producing upmarket food and our products saled in main areas of the world,is looking for the export sales managers for expanding our business in Europe.
答
Our company,which is producing upmarket food and of which products are sold in main areas of the world,is looking for the export sales managers for expanding our business in Europe.