Harker Rapier oilfield service limited is a Hi-Tech company in China which focus on oilfield completion tools and cementing tools research, developing, design, installation and onsite service.

Main business sector as below:

Completion tools and cementing tools design, research, sales and service.

Fluid Loss Control Valve（Formation Isolation Valve）design, research, sales and service.

Sand Control Tools design ,research, sales and service.

Drilling, Completion and Production Equipment Import/Export trade.

Development and sales of oilfield chemical additives.