Suzhou Energy Tool Co., Ltd. (short "EGT " ) is a high-tech company formed by a group of drill bit experts with over 20 years work experience in world top oil service companies such as Smith, Baker Hughes and so on. EGT has cooperated with many research institutes and at home and has formed an advanced technological system basing on market-oriented and continuously promoting technological innovation and product improvement. EGT keep on pursuing to producing high quality products with relative testing ...