Custom carbon steel extension spring with hooks

We custom manufacturer all kinds of wire diameter spring.
1)Wire Dia.:0.01mm-40mm.
2)Material:carbon steel;spring steel;stainless steel,alloy steel.
3)We can do OEM.
4)Surface treatment: Zinc, Nickel, silver, golden, tin, powder coating.

We are the manufacturer of spring from china,our products including:compression spring,extension spring,torsion spring,wire spring,Disc Springs and etc. May i ask do you have drawing of the Springs which you required ? So we can quote you the accurate pricing.
Please check our web site: www.lianhu-spring.com, to know more about our factory.My company email is: David@lianhu-spring.com, if there have anything interesting,please feel free to contact us.