China Zhejiang Sanmen Herod Mattress Co.,Ltd. locates at the
southeast of China, it is only one and half hour's drive from Ningbo
airport and Hangzhou airport, very convenience at the transport and
shipment. We specialized in making various of springs, spring,
bonnell spring for above 8 years, our main products is bonnell
spring, serpentine spring for mattress and sofa usages, compression
spring, extension spring, torsional spring, leaf spring and other
kinds of springs for automobile, machine, artcraft and other usages.
Because of skilled workers, advanced equipments, strict management,
our products, spring, bonnell spring are of high quality and they
are warmly welcomed by our customers from domestic and abroad of
China. |
Bonnell spring:
Bonnell spring or coil spring.
All production are made according to BS4637 and BS3173.
Material: 65Mn, 70# , 72B.
Range on steel wire: 2.2 -2.4mm
Turns: 4-6 turns.
Height: 4 turns 85mm -105mm
5turns 135mm -150mm
6turns 145mm -170mm
Packing method: Carton/Pallets
Minimum order quantity: 20' FCL |
We
specialized in making springs for mattress, sofa, automobile,
agriculture machine, craftwork and other usages.
We are the expert on spring industry. |
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