In this paper, The residua of lignocellulose hydrolysis were as raw materials for producing levulinic acid and lignin active carbon. The technology and reaction condition are optimized.

The scoria walls, steel Windows, doors, hardware, leather pulls, wood siding, millwork, casework and framing were all fabricated and installed by DUST.

Meanwhile, as the main ingredient is wood, wood and wood residue, wood texture and the same can be nails, drilling, grinding, sawing, planing, paint, easy to distort, cracking.