133DTH drill pipes 1.diameter 133mm 2.length1000-2000mm 3.thickness 5-8( ... materials, ensure the normal construction in harsh conditions.5.drill pipes length: 1,1.5,2,3,4,4.5,5 ... ,76,89,102,108,114,127,133,140(mm)9.steel grades:DZ40,45#,R780,other grades available according to customer ...