Kamfaninmu Shandong Hesper Rubber Plastic Co., Ltd. yana samar da 6"-20" (160mm-400mm) PE filastik bututun samun iska da ruwan hoses don tunnels da ma'adinai, kuma yana samar da 4-20" (70mm-700mm) PE hada babban ƙarfin filastik. Filin iska mai iska, tashar wutar lantarki don wuraren jiragen ruwa, gidajen alade, kiwo, masana'antu da dai sauransu Misali, 20mm-400mm high matsa lamba polyethylene (PE) roba hoses, farar hula roba ruwa hoses, 20mm-400mm aikin gona polyethylene ban ruwa da fari-resistant hada high-ƙarfi ruwa isar fim hoses.