about YIDN sample engines delivey time.JIM told me maybe in early June.破句,建议可改成,Jim told me that the YIDN's sample engines would not be delivered until early June.
if so,it is too late,now YIDN is pushing us the delivery time.可以用更婉转的语气:I am afraid it is too late; because they want HDHDH to supply the sample engines in mid May.
后面最好用疑问句,Could you kindly confirm if HDHDH can shorten the delivery time?
最后的时态语法有问题I am looking forward to you reply/information.
文末可空行顶头加With best regards