Name: Heavy duty garage door extension spring
Brand: JINJIA
Availability: InStock

Product Details

Our extension spring business scope:

Product Description

Products Detailes
Available Material	1. Aluminum/Brass/Steel Alloys/Hardened metals
	2,Steel:C45(K1045), C46(K1046),C20,etc.
	3.Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58),
		C27200CuZn37), C28000(CuZn40),etc.
	4.Bronze: C51000, C52100, C54400, etc.
	5.Iron: 1213, 12L14,1215,etc.
	6.Aluminum: Al6061, Al6063, etc.
	7,.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045,12L14,etc.
	8, Alloy steel: SCM435,10B21, C10B33,etc.
Wire diameter	0.1mm~80mm.

Screw Surface Finishing	Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize, Chromate, Polish,Electro Painting,Black Anodize,Plain,Chrome plated, Hot Deep Galvanize(H. D. G. ) etc.

Heat Treatment	Tempering,Hardening,Spheroidizing,Stress Relieving.

Standard	ISO,GB,DIN,JIS,ANSI,BSW

Manufacture Process	Heading/washer assembly/Threading/Secondary machine/ heat treatment/plating/Anti-slipping/Baking/QA/Package/Shipping

Sample Availablity	we can make sample within 7 days free of charge , if there is available tool for us.

Lead time	10-15 working days as usual,It will based on the detailed order quantity.

Carton size	282022 CM &282016 CM
Pallet size	11010090 CM
Warranty	we confirm our goods will satisfy yr request of 100%, and have 18 month warranty.
After sales service	we will follow up goods for every customer and help solve problem after sales.

Company Information

JINJIA is a professional china extension 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.

Packaging & Shipping

Spring Exhibition :

Our company's major export markets in North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Asia,Western Europe,US, South Korea, Russia and so on other countries and area.

FAQ

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.

Our Services

• Good after Sales Service

1).We will respond to your inquiries.

2).Aiming at mutual benefits, we manage to provide our customers with the highest quality, the best service and the most reasonable value by continuous effort.We appreciate your interest on our products very much and hope that our website will be helpful and informative to you. If you need more information, please contact our sales department .

Contact details: