| Zhejiang Sanke Valve Co., Ltd | 2012-05-09 | Exhaust Valve, Control Valve, Flow Meter | 5880K CNY | Not Supported |
| Zhejiang Mingchang Self Control Valve Co., Ltd | 2020-03-12 | Exhaust Valve, Solenoid Valve, Check Butterfly Valve | 11680K CNY | Not Supported |
| Zhejiang Yongxiao Valve Manufacturing Co., Ltd | 2022-05-10 | Exhaust Valve, Discharge Valve, Pressure Relief Valve | 11800K CNY | Not Supported |
| Zhejiang Kekong Pump Valve Co., Ltd | 2021-03-12 | Exhaust Valve, Oxygen Flame Arrester, Lined Fluorine Flame Arrester | 11680K CNY | Supported |
| Zhejiang Juhao Valve Co., Ltd | 2018-08-29 | Exhaust Valve, Control Valve, Ball Valve | 18000K CNY | Not Supported |
| Zhejiang Jinhao Valve Co., Ltd | 2015-08-25 | Exhaust Valve, Hydraulic Valve, Balance Valve | 11800K CNY | Not Supported |
| Zhejiang Zhongwei Valve Manufacturing Co., Ltd | 2003-08-08 | Exhaust Valve, Check Valve, Valve | 5280K CNY | Not Supported |
| Zhejiang Tangsheng Self Control Valve Co., Ltd | 2023-10-25 | Exhaust Valve, V-Ball Valve, Metallurgical Non-Standard | 10800K CNY | Not Supported |
| Zhejiang Ruiming Valve Co., Ltd | 2021-03-12 | Exhaust Valve, Needle Valve, Breathing Valve And Flame Arrester | 10800K CNY | Not Supported |
| Zhejiang Shengwei Pump Valve Co., Ltd | 2021-04-13 | Exhaust Valve, Filter, Safety Valve | 16880K CNY | Not Supported |