1.6 to 2.3mmbiconical spring for sofa: 1. round: 6 2. material: coil 3. heigh: 10to 20cm 4. width: 5.8 to 7.2cm Protechmaterial is a leading manufacturer in South China specializing in furniture elastic material and relatived hardwares, and with a long export history since...

Zigzag spring by roll is used for furniture,,it also called sofa spring or zigzag springs. 1. material:steel 2. diameter;3.0 1.Protech  is professional to make spring,it also called sofa spring or zigzag spring for furniture2.We have the sofa mattress spring, pocket spring,...

2.8 to 4.0mm biconical spring for sofa: 1. round: 6 2. material: coil 3. heigh: 12 to 20cm 4. width: 8 to 11cm Protechmaterial is a leading manufacturer in South China specializing in furniture elastic material and relatived hardwares, and with a long export history since...

1.6 to 2.3mmbiconical spring for sofa: 1. round: 4.5 2. material: coil 3. heigh: 10to 20cm 4. width: 5.8 to 7.2cm Protechmaterial is a leading manufacturer in South China specializing in furniture elastic material and relatived hardwares, and with a long export history since...

2.8 to 4.0mm biconical spring for sofa: 1. round: 6 2. material: coil 3. heigh: 12 to 20cm 4. width: 8 to 11cm Protechmaterial is a leading manufacturer in South China specializing in furniture elastic material and relatived hardwares, and with a long export history since...

coil spring sofa in hardware: 1. material: steel 2. usage: sofa 3. width:16-25mm 4 diameter: 3.0 to 4.3mm protech (riqiang furniture hardware company)  zigzag sofa spring is used for the sofa, so called snake spring and hardware spring.Xinli has a long history...