spring steel conical contact washers/knurling disc springs

 sring washer

   2.Advantage of flat washer

•   Easy to operation
•   Much choice of the specification and design
•   Wide material sorts choosed
•   Nice and smooth surface
•   Envirnment protection
•   Leading time :within 7-15days based on the normal size
•   Samples for hex nut are partially in free
•   One-stop purchasing
•   Prompt delivery
•   According to quantity and customer's requirment

  duct  picture

4. Dimensions

5.other product we service

6.The Production Process

                                                         1)Raw material                                                   2)Wire Drawing

 7.The Product of Application

•  automotive 
•  construction
•  electronics
•  wind power generate electricity facility
•  agricultural machinery
•  drilling equipment
•  marine
•  military
•  mining equipment
•  rail transit
•  metallurgical
•  compressor
•  furniture

    We keen perception of time and market environment for enterprise challenge and opportunity,products are sold throughout the country in addition,Also exported to foregin countries.Superb technology,quality products,perfect service make us and the word closer.We will be firm step in the development of the domestic market,activity expand the overseas technical cooperation and trade, to further expand the market share,and strive to open A star brand.

1)How to order the products?
Answer: 
Send the inquiry with detail item description or with Model number. 
If there is no packing demand we take it as sea-way packing. 
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding. 
2) About lead time and shipping time? 
Answer : 
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement. 
According the distance from china to your port, usually from China to European about 25 days. To West of American 20 days.If by plane can be 37days ,very faster than ship, but costly than by ship. Depend on your condition. And the we have stock, can immediately delivery once we sign contract.
3)Can I expect a quality products and good price? 
Answer : 
Yes. All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request. If your situation permit you to come to China ,to our factory, you check the bits , we discuss face to face,that will be better;If you can not come maybe you have friend in China ,they can help you; If this is not ok, we can take photo, negotiate by e-mail, IM,or by telephone.