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Long-life rubber composite gas connection hose in phi 9.5mm and phi 13mm, oil-, acid-, alkali-, aging- and low-temperature-resistant, available in yellow or black with leak-proof steel-band clamps, suitable for town gas and natural gas in household kitchens, commercial catering and outdoor gas equipment. OEM/ODM customization available, MOQ 1000 pcs.

The QJB-W Sludge Return Pump is a high-flow, low-head submersible pump developed from proven submersible mixer technology. It is designed primarily for mixed-liquor recirculation, sludge return, denitrification and nitrogen-removal processes in secondary wastewater treatment plants.

The equipment is widely installed at the inlet channels of municipal wastewater treatment plants, waterworks, pumping stations and power plants. It can also be used for solid-liquid separation in textile, printing and dyeing, slaughtering, leather processing, papermaking, brewing and food-processing industries.

The series is widely used in agricultural irrigation and drainage, municipal flood control, urban stormwater systems, industrial water transfer, power-station drainage, shipyards and water-conservancy projects.

GSJ/QSJ Series Hyperbolic Mixers are high-efficiency mixing devices designed for municipal wastewater treatment, chemical processing, papermaking, energy, light industry and other liquid-mixing applications. The equipment is especially suitable for mixing tanks, conditioning tanks, anaerobic tanks, nitrification tanks and denitrification tanks, where uniform circulation and effective anti-settling performance are required.

Gas Line Warning Protection Board This premium protection board safeguards underground pipelines from accidental excavation. Featuring a durable multi-layer PE/PC structure and galvanized steel fittings, it provides precise positioning, physical shielding, and prominent "DO NOT EXCAVATE" warnings. Available in TYPE 200/300/500, it is the ideal certified safety solution for gas, power, and communication lines.

The QJB Series is a versatile range of submersible mixing and low-speed flow-propelling equipment developed for municipal wastewater treatment and industrial liquid-handling processes.

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