江苏赛维斯石油科技有限公司
Exhibit Profile：
Float collar, float shoe, grading collar, tail pipe hanger, cement head, cementing plug, stabilizer, stop ring, while drilling reamer, shock absorber, oil casing accessory short joint collar buckle, etc
Float collar, float shoe, grading collar, tail pipe hanger, cement head, cementing plug, stabilizer, stop ring, while drilling reamer, shock absorber, oil casing accessory short joint collar buckle, etc
Website：http://www.service-js.com