Jan. 17, 2019
11:19 p.m.
Dear Manager， Thank you for spending time to read my letter. Our company is a manufacturer of IoT/M2M products. And we have established a stable relationship with the well-known companies at home and abroad. If you are interested in our products,reply"OK",i will send a brief introduction of our products to you. Looking forward to your reply. Yours sincerely．