Welcome: Dongguan Caiyin Hardware Spring Products Co., Ltd.
sales6@caiyinspring.com
+86-188-2434-1578
All the raw materials are inspected to ensure compliance with standards.
Check the shape and size of the design drawings.
Ensure the machine working and running properly.
All the flat coil springs have to go into trial productions.
Ensure smooth production for the springs.
Mass production in strict accordance with the process.
Increase the hardness and elasticity of the springs through heat treatment.
Ensure all the test of the springs will be passed.
Ensure all the test of the flat coil springs will be passed.
Check all the measurments of the springs and must be passed.
All the packaging must meet the standards.
Ensure that all flat coil springs are shipped
Name: hanshaohui
Mobile：+86-188-2434-1578
Tel：+86-188-2434-1578
Whatsapp：+86 188-2434-1578
Email：sales6@caiyinspring.com
Add：Wenming Road, Xiaoxiang Ind. Zone, Wanjiang District, Dongguan City, Guangdong Province, China.
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