Guangzhou Langjie Environmental Protection Technology Co., Ltd. was established in 2000. It is an integrator for commercial wastewater, waste gas and waste slag treatment system. It provides users with professional system solutions and operation and maintenance management. It is jointly organized by scientific and technological personnel from Tsinghua University, jointly investing and marketing experts. The established environmental protection high-tech enterprise focuses on the research and development and manufacturing of environmental protection equipment for wastewater, waste gas and waste slag treatment in the catering industry, and implements multi-faceted operations of R&D, production, sales and after-sales services.

The company is the deputy chairman of the waste gas purification committee of the China Environmental Protection Industry Association, the participating unit of the national industry standard "Food Water Oil Separator" (CJ/T 295-2015), and the National Building Design Standard Gallery "Sanitary Equipment Installation" (09S304 ) The participating unit, the participating unit, the participating unit, the participating unit, the participating unit, the participating unit, the participating unit, the participating unit, the participating unit, the following standard "Purification Requirements and Test Methods of the Food Industry Waste Gas Purification Equipment" of the China Construction Association, the participating unit, the following unit, the following unit, the following standard, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following waste gas purification equipment for the China Environmental Protection Industry Association, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following unit, the following The standard "Distributed Sewage Treatment Equipment" is the editorial unit.

The main environmental protection equipment of "Langjie" brand has passed the CCEP China environmental protection product certification and the EU CE certification, mainly including catering wastewater oil separators, biological deodorization equipment series, catering electrostatic oil fume purifiers, integrated sewage lifting equipment, etc.