：
A barbecue lampblack purifier (rui zhahe)
A patent (company name) for an oil and water separator
A laser cutting smoke cleaning device (rh)
Design patent certificate plasma exhaust gas cleaning equipment (Chen kaixi)
Utility model patent certificate oil smoke oil mist patent (Chen kaixi)
Water shield plate patent - (auspicious sign and)
Inspection report 2017
2016inspectionreport
