We are Dongying East International Trading Co., Ltd , which is one of the wholly-owned subsidiaries of Sinopec and professional oil equipment supplier . We are located in China' s second largest oil filed --Sinopec Shengli Oilfield, China
Drill Collar
Drill Collar
1) Standard: API 7
2) Raw Materials: AISI 4145H
3) OD: 3 -1/8, 3-1/2, 4-1/8, 5 , 6 , 6-1/4 , 6-1/2 , 6-3/4 , 7 , 7-1/4 , 7-3/4 , 8 , 8-1/4 , 9 , 9-1/4 , 9-3/4 , 10 , 11,
4) Length: 9150mm---9450mm
Contact us : qinyunpetro (AT) gmail(DOT)com
Contact us : qinyunpetro (AT) gmail(DOT)com