FAQ:

1. If we wanted to buy 1 pcs of sample to test quality ,is that ok ?

  Yes , 1 pcs is a vailable

2. if we wanted the valve quality confirmation , how did i get it ?

 we will offer quality inspect report to you 

3. if we buy 1 pcs sample , may i have free one ?

we always offer free sample to old customers , if you are news for us , it awalys should pay for the sample cost and shipping cost , but i will help you to apply for the free sample ,you just pay for the shipping cost 

4. How did i pay for the sample cost and shipping cost 

we can accept  PAYPAL , Western union ,hongkong bank or company bank 

5. if we get the bad sample , how can i do ?

pls take photos and tell  your question to us , we will start it , if just our quality is bad ,  i will send another one free .

if should change some dimension , i will help you to make new drawing to check and productions 

6. if we wanted another products like your samples , how did i get it ?

You just tell me your disigns to us , we can help you to make drawing to check , if you have drawing is better ,

Than arrange it to produce

Any other questions pls contact with us.