JINJIA is a professional china plate spring  
                                                              manufacturer of hardware products. It combines R&D, manufacturing and sales together and owns advanced equipment and strong technical strength. As for products development, we are well equipped with advanced design software like CAD/Proe/UG, etc. In terms of quality management, we strictly conform to the rules of ISO9001 Quality Management System and operate it in a scientific way. We’ve won a high reputation in this industry because of our excellent quality products. Jinjia-your best china screw manufacturer!

We can also produce:

Galvanized All Types Machine Screws, Self Tapping Screws, Self-drilling Screws, Customized Screws or Other types screw are also available. 

1) Q:Can you complete the production according our drawings?

     A: Yes,we provide Customized OEM/ODM Service.we manufacture products as customer's design.

2) Q:How can you guarantee my prepayment is safety?

     A:If the product is not qualified, we will return the advance payment to you.You can also choose letter of credit, Alibaba Trade Assurance,To ensure the advance payment 100% security

3) Q:What shall we do if we have no drawings?

     A:1,Please send your sample to our factory,then we can copy or provide you better solutions.
         2,Please send us pictures or drafts with dimensions(Length,Hight,Width),CAD or 3D file will be made for you if placed order.

4)Q:How to guarantee the quality of your pan head screw products?
       A: If you do not rest assured the quality of our products, you can come inspection before shipment , or entrust the third party inspection company to come to our factory for inspection (for example, SGS, TUV, BV...), after passing the test we arrange the shipment of the goods.

5)Q:What can you do if i do not satified with your finished products?
      A: You can choose productive again by us or refund the payment.

6) Q:What should you do if we receive defective product?
     A:If you find any defective accessories in the first order, we will give you the new parts for free to replace in the next order.

7). Q:Can we get some samples before mass production?
      A:Yes,we will send some sample to you for test before mass production.

8) Q:How about the delivery time?
     A:The delivery time will be according to the part quantity. We will provide the fastest delivery time according to the quantity.

 • Good after Sales Service