- API 5CT Casing
- API 5CT Tubing
- Pipe Materials for down hole tools
- Petroleum Machining Seamless Steel Tube
- Extra-heavy Steel Pipes for Down-hole Tools
- Coupling Stock
- Vacuum Insulated Tubing(VIT)
- H2S Corrosion Resistance Tubing and Casing
- Economical Corrosion Resistance series
- Tube for Perforation Gun
- Slotted Screen Pipe
- Super 13Cr Series tubing and casing
- High Collapse Casings
- Ultra Strength Casing
- Nickel Alloy tubing and casing
- Pup Joint
- API Coupling
- Thread protector
- Compound Inflation Thread Protector
- Quick- operating thread protector
- Premium Connection
- Stabbing Guide
API Coupling
Kunyuan Petroleum Equipment can provide different types of couplings,including tubing and casing coupling. The tubing and casing couplings are designed accroding to API 5CT Standard. Tubing and Casing couplings possess better machanical properties and sealing propery.