翻译we need some marker which used in car manufactuere which s

最后的fire prof想必是错的。fire是火的意思。prof是教授professor的缩写。这个句子语法错的很严重。老外都看不懂这东西。按我的理解是：我们需要一些具有高质量的标记物来用于汽车制造。we need some markers which have high quality and fire XXXX to be use in car manufacture。