best quality and competitive price SBS/APP waterproof materials thickness;2mm 3mm 4mm 5mm length:10m width:1000mmweifang hongyuan waterproof materials co.,ltd ,is a leading manufacture producing all kinds of waterproof materials ,my company web which is www.hongyuan.cn our main products are SBS/APP/PVC/EPDM/PP/PE,self-adheresive waterproof membrane ,asphalt shingle ,polyurea coating and so on the ...