Small Zinc-Plated Double Hook Extension Spring

We manufacture and supply small double hook zinc-plated extension spring for industrial and electrical.Our small double hook zinc-plated extension spring is made of high-quality stainless steel and high-carbon steel .Specifications:1)with the  wire diameter is 1mm 2)Free height 30mm 3)high tensile strength 4)Dimensional Accuracy 5)Long service life. 6)competitive price 7) surface treatment: as your request.Our small double hook zinc-plated extension springs are available in various dimensions. The small double hook extension spring manufactured by us is also capable of providing unparalleled quality service. Moreover, our range is offered at industry leading price. Here are the specifications of our products: We have accumulated more than 25 years of experience by manufacturing different kinds of springs.We will try our best to meet our customers' requirements on the basic of our ability and experience.We stick to provide you with the best quality products.

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1. When did your company found? How many square meter does it cover?

Our company was founded in 1986, it covers an area of more than 8000 square meters.

1. Are you trading company or factory? What's your main products?

We are a factory which specialized in manufacturing all kinds of springs. Our main products are coil spring, suspension spring, valve spring, oil seal spring, torsion spring, extension spring, snap spring, spiral spring.

1. How much is your annual Production?

More than 800 million pieces.

1. How about your current equipment?

We have more than 50 sets of 0.18-23mm advanced numerical control coil spring machines and mostly of our CNC machines are imported from Taiwan.

1. How about your delivery time?

Normally our delivery time is 45 days (except the holiday and special bulk order).

1. What's your main market?

Domestic, Europe and America, Russia, south America, middle east

1. How about your yearly sales amount?

Around $10 million.

1. Could you supply free samples?

 Yes, free sample is available for us (the sample and value should be according to our company rule).

1. Do you have end user clients?

Yes, many companys in china which produce the automobile shock absorbers, we have been well cooperating with them for years.

1. How about your plating?

Normally the product surface color is silver (Trivalent Zinc Plating). Black, yellow, red, green, blue also are available (Powder Spraying or Paint Spraying)

1. What's your main product material? From which supplier?

Carbon steel and stainless steel. We purchase it from iron and steel group companies aroud Jiangsu and Zhejiang.

1. How about the product marking?

Normally we use our company logo with "MF", also we could use customer's logo or without logo.

1. How do you control your product quality?

All products have to go through six checks in the whole process:
1)material inspection; 2)product inspection; 3)routing inspection; 4)inspection before plating; 5)final inspection after plating; 6)inspection before delivery.

1. How many technical engineers do you have?

We have 6 professional technical engineers.

1. How do you deal with the clients' complaint?

We will give a response for clients' complaint within 24 working hours, based on the fact, we will give a satisfied answer to customers.

1. How about your Package?

Products are protected with the plastic caps and then packed in carbon box.