BV

SGS

Qualification Level 1 for Water Supply Facility Cleaning and Disinfection Service Enterprise

Approval for Hygiene License of Products Related to Drinking Water Hygiene and Safety

Occupational Health and Safety Management System Cerificate

The Certificate Of Environmental Management System

Quality Management System Certificate

Construction Enterprise Qualification Certificate

Safety Production License

Hongjun Trademark Registration Certificate

Hongjun Trademark Registration Certificate

IJW Trademark Registration Certificate

A siphon tidal intermittent oxygen tank

A conical wetland tower

A detachable mobile water treatment functional pool

An Oxygenation System in River Biochemical Pollution Control Technology

A High Concentration Organic Wastewater Evaporation and Absorption System

A Tidal Stereoscopic Sewage Treatment System

Optimization of sludge native microbial community and expansion of sewage treatment equipment

An environmentally friendly aquaculture pond with sewage treatment function

Integrated environmentally friendly sewage treatment equipment

A high-efficiency dissolved oxygen equipment for mechanical deep wells

A catalytic wet oxidation treatment device for industrial wastewater using recyclable catalysts

A sludge treatment equipment using catalytic wet oxidation method

A preparation method of polymer composite flocculant for printing and dyeing wastewater

Treatment of Printing and Dyeing Wastewater by Iron Carbon Microelectrolysis Combined Technology

A catalytic wet oxidation treatment equipment for dye wastewater

A catalyst drying device for wastewater treatment

A settlement type equipment foundation device for water conservancy and its construction method

A frame combination welded water purifier structure

An environmentally friendly biological pre-treatment water device

A portable water bag purifier