Yes .samples can be provided for free.
(B)Are you a factory or trade company ?
We are a factory with 20 years experience in valve research and production .
(C)Is there any stock in your factory?
Yes.we have wide range of products.
(D)Do you have OEM/ODM service ?
Yes . A variety of products size , quality and quantity can be customized according to your requirements.
(E)How do you deal with that if there are some quality problems in products?
We will be responsible for all the quality problems.