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.

Company Infromation

 

Qingdao Pingyang International Trading Co., Ltd., was established in 2014,a famous and professional tension spring supplier.

 

we are located in Qingdao, north of China. Our factory near the Qingdao Liuting International Air Port and Huangdao Sea Port,the traffic is very convenient.

 

Which specializes in Industrial Casters. Bead Roller Machine . Hand Trolley. Corner Guards . Wire Springs

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If you want to get high quality  tension spring, please visit Qingdao Pingyang International Trading Co., Ltd.

We accept a variety of styles of spring customization,if you want to custom,please kindly supply bellow information:

 

1.Material

2.Wire diameter

3.Surface treatment

4.Inner diameter and outer diameter(ID and OD)

5.Free length and work length

6.Total coils and active coils

7.Application

Of course,a detailed spring drawing is the best.

Our main products are as follows

 

1Compression spring

2.Extension spring

3.Torsion spring

4.Disc spring

5.Die spring

6.Conical spring

7.Special shaped spring

Our Services

 

1.Customized  design is available OEM ODM are welcome 

2 Reply your enquiry in 24 working hours 

3 Expericenced staffs will answer all your questions in professional and fluent English 

4.Exclusive unique solution can be proof provided by our well-trand and professional  engineers

5.Special discount  can be offered with large quantity

6.We will try our best to meet your requirements and supply you best quality auto coil spring for suspen