LONGWAYis a manufacturer of API standard drill pipe in China, our product has been exported to Europe, Middle 
East, South Asia, etc, sincerely hope having a good cooperation with all valuable customers 
The drill pipe specification is as below: 
1.  API 5DP certificate (No. 0011) 
2.  Steel grade: E75, R780, G105, S135 
3.  Pipe OD: 2-3/8" , 2-7/8" , 3-1/2" , 4" , 4-1/2" , 5"  
4.  Tool joint thread: NC, IF, FH 
5.  End upset: EU, IU, IEU 
6.  Length range: RI ~ R III 
7.  Hardbending and plastic inner coating can be processed as required such as Arnco, TC2000, TK34 
8.  Water well drill pipe, geological drill pipe, flat drill pipe, non dig drill pipe are also our professional field