China woven sacks manufacturers,pp woven sacks manufacturers,pp woven sacks,hdpe woven sacks,fibc manufacturers,ton bags wholesale suppliers.leave Fire: self-destruction; odor: amino taste; residue characteristics: hard light brown transparent bead (5), acrylic fiber: close to the flame: melting shrinkage; contact with the flame: melting, smoke; leave the flame: continue burning, black smoke; odor: pungent odor; residue characteristics: Black irregular beads, fragile (6), polypropylene fiber: close to the flame: melting shrinkage; contact with the flame: melting, burning; leave the flame : continue to burn; odor: paraffin smell; residue characteristics: white hard transparent bead (7), spandex fiber: close to the flame: melting shrinkage; contact with the flame: melting, burning; leave the flame: self-destruction; smell: special smell; residual material characteristics: white gel (8), polyvinyl chloride fiber: close to the flame: melting shrinkage; contact with the flame: melting, burning, black smoke; leave the flame: self-extinguish; odor: pungent odor; biometric residues: Deep . brown lumps (9), PVA fiber: close to the