API 2 3/8'' drill pipe ;E75 grade (60mm)

2 7/8'' drill pipe manufacturers exporting many years!!!

API 5DP drill pipe manufacturers; 2 3/8'', 2 7/8'', 3.5'', 4.5'', 5''

API drill pipe-----longway drilling

5'' drill pipe*9.19mm*IEU*E75 grade*NC50 ; API standard

Water well drill pipe with API5DP Standard from Longway

5'' drill pipe;long 6 meters and 9.5 meters( grade S135)

3.5'' drill pipe, 6 meters length ( grade E75)

Drill Pipe Tool Joint with API Standard