weifang hongyuan waterproofing materials
company ,as one of the biggest specialized waterproofing mateials
manufacturing enterprieses in shandong province ,our mainproducts are the SBS/APP waterproof
membrane / self-adhered bitumen membrane /self-adhesive membrane
tape / colorful asphaltshingle/ polymer PE and PP membrane/ PVC
waterproof membrane / EPDM rubber waterproof membrane/HDPE
membrane/black paper /bitumen paper/black paper