... waterproof 2:fadeless 3:lightweight cold rolled steel sheet piles Detailed Specification: thickness0.2~0.8(mm)Raw ... blue, Deep red, Gray, TephrosiousGuarantee Period15~20 yearsCharacterLight in weight, heat insulation, water resistant, green and environmentalUsevarious ... form a high-efficiency compound building material.2. Light in weight, heat insulation, water resistant, green and environmental3 ...