b.我们新研制的……已推出上市，特此奉告。 we are pleased to inform you that we have just marketed our newly-developed….
c.我们盼望能成为贵公司的……供应商。 we are pleased to get in touch with you for the supply of….
d.我们的新产品刚刚推出上市，相信您乐于知道。 you will be interested to hear that we have just marketed our new product.
e.相认您对本公司新出品的……会感兴趣。 you will be interested in our new product…….