сжатый диван Pocket Spring

sofa pocket spring The common specification of one single spring are as below: Wire used: 1.8-2.4mm. Internal Dia: 45-55mm External Dia: 65-90mm. Border wire: 4.8-5.0mm. Height: 60-230mm Turns: 4-6. Upon the customers offer us the detailed specification information, we can quote and these are various size available. All the springs will be heat treated. We have two kinds of packing ways. Roll packing --without the border wire. Flat packing --with the border wire (with 10-20pieces into one package.