这是我写的英文商业信涵,帮忙看有没能错误.

这是我写的英文商业信涵,帮忙看有没能错误.
We,China Tanhoo international Brands accessories Inc.,specializes in originally designing for world famous brand names,including Volkswagen,Audi,Siemens,furthermore,we also have invented a set of watches which are extinguished for its unique function and attractive appearance,for this,we have applied for its appearance patent in both America and China,and we are looking for opportunities to mutual cooperation.
We wonder if you are interested in doing business with us,if so,we will send you the pictures of our patent products after we get the contact with the person who is in charge.
We look forward to your reply at your earliest convenience.
帮我看看有无语法错误(我们做的是专利营销)