| Customization: | Available |
|---|---|
| Type: | Spring |
| Size: | Customized |
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Product Description
|
Product Type
|
Bonnell Spring
|
|
Material
|
Carbon Steel
|
|
Style
|
Coil
|
|
Coior
|
Grey
|
|
Spring Count Per
m²
|
Wire Diameter
(mm)
|
Head Diameter
(mm)
|
Height
(mm)
|
Turns | Helical Wire Diameter |
| Min-Max | Min-Max | Min-Max | Min-Max | Min-Max | Min-Max |
| 110-340 | 2.0-2.4 | 70-90 | 110-180 | 4-6 | 1.3-1.6 |
Made of excellent high carbon steel wire.
It is a continuous piece of wire that is twisted and coiled to create a massive set of joined crude springs.
All spring wires are heat treated, which can ensure the spring coil is tensile strengthened and durable.
Can be used in both mattress beds and upholstery sofas.
Packing
Factory
About us
Ningbo MH was established in 1999, specialized in garment accessories and tailoring materials. After years of development, MH has set up a business relationship with more than 150 countries, with sales amount of $670 million. The main products are sewing thread, embroidery thread, ribbon & tape, embroidery lace, button, zipper, interlining, and other accessories & fabrics.
At present, MH owns nine factories located in 3 industry zones, with 382,000m2 plant area and 1900 workers, producing polyester sewing thread, embroidery thread, lace and embroidery, ribbon & tape. MH factories could produce sewing thread 3000 tons/month, embroidery thread 500 tons/month, 2,500,000m2/month of lace fabric and trimming, and 100 tons/month of ribbons & webbings. MH also set up long-term cooperation with 1500 manufacturers for 10000 different kinds of tailor's material and fabric. Welcome for factory audit.
MH has certificates of ISO 9001:2015, ISO 14001:2015, ISO 45001:2018.
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