Waste-gas purifying tower; Inorganic materials air duct; Ventilator; antisepsis engineering; Air purifier for both car-use and home-use; Water park facility; Water tank; Environm protection Equipment; Water treatment plant; Chemical corrosion resistant equipment; rockwork stone; Artificial stone; Gfrp raw material; glass inforced plastic; puddle antisepsis seepage engineering; processing glass inforced plastic; insulation engineering; plastic pipe thicken