... 1, Water-proof, sound-proof, heat insulation, heat preservation 2, can be drilled saw, nailed, dig, glue ect. 1,PVC foam ... normal welding procesdures, also can be adhered with other PVC materiladvantages1,Providing quality products2,excellent service3,competitive price and ... specifications each year, including 50,000 metric tons of PVC profiles, 200,000-square-meter aluminum-plastic composite decorative ...