I recommend finding a translator, we are having trouble understanding what you are saying.
In western business culture, this method of advertising will not get you any sales. You will need a website that shows what you have, cost, and your contact/payment details.
Also, I do business in Asia, and generally China only has old and low-quality parts. Shipping is expensive enough that price isn't low enough to be worth it. And scams are very common. You might be an honest seller, but we have no other information to go by.