Specifications

1. A competitive price
2. high quality be controled
3.short delivery time

 

ZHUJI HENGGANG SPRING CO., LTD.

Professional Springs Manufacturer

 

 

The information of ours Extension Spring 

 

1.Material	carbon steel(SWC),Alloy steel SEA9260/9254/6150/SUP9/SUP10/SUP12,51CrV4,stainless steel,Music wire/piano wire(SWP);beryllium copper etc.
2.Wire diameter or thickness	0.1~80 mm
3.Finish	Zinc,Chorme,Nickel, Silver,Gold, Tin,Powder coating,Oxide black or customzied
4.Processing craft	Material purchased-Producing-Frist Testing-Coiling-Inspection-Heat treatment-Cleaning-Surface Treatment-OQC-Packing-Shipping
5.Application	Industrial/auto/Motorcycle/electronics/electric power/Toys/Sports goods/Machinery equipment etc.
6.Employees	50~100 people,and 5 technicians of them
7.Quality Certification	ISO9001:2008
8. Payment term	T/T,L/C or other payments
9. Equipment	Advaneed CNC spring machines with high precision and efficiency, advanced heat treatment  and testing machine equipment
10.Packing	inner packing with plastic bags,and then carton boxes for outer packing,at last wooden or plastic pallets for request
11. Shipment	By sea/air/UPS/TNT/Fedex express etc.

 

What kinds of extension Spring sharp you want?

Full loops at center,Plain ends,Full loops over center,Full loops at side,coned ends with adjustable hooks,Double extension spring,Small loops at side etc.

 

And which type of tension spring ends you need?All you can see the picture as below:

If you want to send an enquiry to us, you must have some datas of the tensile

spring, such as:

1.wire diameter

2. the dimension of the spring inner diameter and outer diameter,and include the tolerance

3.free length of the spring

4. Total coils or active coils of the spring

5.the materials

6. Surface treatment

7. what kind of the spring sharp,and which ends of the spring you want?

 

Or it's good that you can send the drawings or real samples to us

the details of the extension springs as below:

  

 Our company iare the professional springs manufacturer in China, which are more than 15 years. we have more experiences, advanced equipments, good skills and professional staff team. we are famous by good quality in China. extremly quality controled trought all production process. ISO9001:2008 quality systerm implemented all the time.and all kinds of springs will be finded here. "Once you choose us, you will never leave us". our target is that  your best business partner of hardware parts in China.

  

 Our company located

 

Advanced CNC equipment

 

 

Good quality from testing&inspection equipment