Oil Cracking Pipes and Geological Drilling Pipes
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- 
          API steel pipe
          
- API steel pipe
- API steel casing pipe
- Casing and Tubing
- API drill pipe
- API5L steel pipe
- Oil pipeline

- 
          Carbon steel pipe
          
- Carbon steel pipe
- Welded steel Pipe
- seamless carbon steel pipe
- Petroleum Casing Pipe

- 
          Alloy steel pipe
          
- astm a 335 gr p22
- alloy steel pipe l555
- 25crmo4 alloy steel pipe
- alloy pipe a335 p11








- interpret seamless steel pipe
- Water pipeline - Handling and
- Applications of welded pipe pil
- welded steel pipes and Seamless
- ASTM A 106 Seamless Pipe
- Carbon dioxide resistant oil ca
- seamless steel pipe On-line col
- EN 10305-1 / DIN 2391 cold draw
- EN 10255 Standard Pipe,replaces
- API 5L A53 / A106 Grade B, Seam
 
          One of the Top 500 enterprises in China foreign trade
QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association

		Oil Cracking Pipes
	
| 
							Style | 
							Size | 
							Steel grade | 
							Standard | 
							Applications | |
| 
							OD | 
							WT | ||||
| 
							Oil Cracking Pipes | 
							8~219 | 
							2~40 | 
							20#、16Mn、1Cr5Mo、12CrMo、15CrMo、T5、T9 | 
							GB9948、ASMESA213 | 
							Cracking furnace oil refinery | 
	Geological Drilling Pipes

| 
						Style | 
						Size | 
						Steel grade | 
						Standard | 
						Applications | |
| 
						OD | 
						WT | ||||
| 
						Geological Drilling Pipes | 
						8~219 | 
						2~40 | 
						DZ40、DZ55、STM-R690、SMTR-R780 | 
						YB/T5052 | 
						Q/BQB 230-2004 | 
 
      

 
          