SFMC (SHANXI FENGLEI MACHINERY MANUFACTURING CO, LTD) IS A LEADING MANUFACTURER OF DRILL TOOLS IN CHINA WHICH GRANTED WITH API, ISO 9001,ISO 14001 AND 18000 CERTIFICATES.ITS PRODUCTS HAVE BEEN WIDELY USING BY ALL CHINESE OILFIELDS BOTH ONSHORE OFFSHORE CNPC,SINOPEC CNOOC, SUCH AS DAQING, SHENGLI, TARIM, BOHAI, ETC. ALSO ...