Ang aming kumpanyang Shandong Hesper Rubber Plastic Co., Ltd. ay gumagawa ng 6"-20" (160mm-400mm) na PE plastic ventilation hoses at water hoses para sa mga tunnel at minahan, gumagawa rin ng 4-20" (70mm-700mm) na PE composite high Strength plastic film ventilation duct, flame retardant duct para sa mga shipyard, kulungan ng baboy, aquaculture, pabrika, atbp. Halimbawa, 20mm-400mm high pressure polyethylene (PE) plastic hoses, civil plastic water hoses, 20mm-400mm agricultural polyethylene irrigation at drought-resistant composite high-strength water conveying film hoses.
