1.which widely used in packing area for building material,auto parts,hardware parts etc. 2.lowe noise,stable running USEThis machine usres LDPE and LLDPE to products casting stretch film,which widely used inpacking area for building material,auto parts,hardware parts etc.FEATUREF-500/1000 automatic stretch film co-extruder with following featrues:low noise,stable running,especially winding part ...