It is in the company (which) you referred to (that) this kind of beer is produced.这句话可以这样翻译“这种啤酒是在你提到的那间公司生产的”.前面的空格,除了用which,还可以用that作定语从句的引导词.整个句子是一个强调句,强调啤酒的生产地方.