Depends on different ideas, Can be negotiated.The larger the quantity is, the competitive the unit price will be.

Q2. Should the customer pay the delivery fee,How much is it ?
For the delivery fee,many samples are be requested to be sent,so we must get delivery fee.
If you tell me to use the appointed Express,you will give me your express account or you will pay according to the Express.
If you do not request,I will choose a cheap one in China.
Q3. How about the after sale service?
1) We will always keep the quality the same as the buyer's samples and if there is something with the quality,we will make
compensation for our coustomers.
2) We will suggest our packing and take charge in our packing,we will keep the goods safe in the delivery.
3) We will trace the goods from the production to selling,we will solve the problems in the selling for our coustomers.
Q4. When can I get a price?
We usually quote within 24hours after we get your inquiry.
Q5. Are you a trade company or manufacturer?
We are a professional manufacturer with our own factory.