SPRING: Tempered steel spring diam. 2.20mm
PADDING: one sheet on each side in CM polyurethane foam density 27 kg/m3
COVER: 100% CO fireproof ecru fabric, quilted with fireproof resin fiber 200 g/m2 and non-woven fireproof “barrier” support
BAND: in 100% CO fireproof ecru fabric, quilted with mm. 5