- Puyang Chengxin Oilfield Chemical Company Ltd.
- oilfield chemical, drilling chemical, oilfield lubricant, encapsulator, inhibitor, liquid PHPA, defoamer, fluid loss reducer, emulsifier, mud chemical.
- Address:Panjin Road Puyang Henan 457001 China
- Fuchang Machinery Co., Ltd.
- capsule filling machine, soft gelatin capsule encapsulator.
- Address:Development Road 3, Development zone, Ruian, Zhejiang, China
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