Ruilong Drill--- Water Well Drill Pipe Welcome to visit Ruilong Water Well Drill Pipe page ! Ruilong Drill had produced Water Well Drill Pipe for more than 15 years in China . Thanks for your trust we can provide the competitive water well drill pipe for you ! How to choose the right Water Well Drill Pipe ? 1,Whats the diameter of drill pipe ? There are 42mm,50mm,63.5mm,76mm,89mm ,102mm,114mm and 127mm . But 89mm and 114mm drill pipe are used large quantity . 2,Whats the length of drill pipe ? There are 1.5m ,2m ,3m,4.5m,6m,6.1m,7.2m 9.5m etc. 1.5m,3m,6.1m,7.2m are used large quantity. We also can produce the length as your request . 3,Whats the thread of drill pipe ? There are API 2 3/8REG, 2 3/8 IF(NC26) ,2 7/8IF(NC31) ,3 1/2REG(NC38),NC40 etc thread. 4,Whats the material of drill pipe body ? E75,R780,X95,G105,S135 etc 5,Whats the material of Joint ? 40Cr, 45Mn2, 35CrMo, 4137H, etc. 6,How many types water well drill pipe?