We specialize in manufacturing api 7-1 stabilizer forgings and api 11b sucker rod. the products are made strictly as per api 7-1 standard with test certificat. or you can appoint any reliable thrid party inspection.h igh quality and the soonest delivery can be assured. stabilizers: integral blade stabilizer, near bit stabilizer, drilling reamer, roller reamer, non-magnetic stabilizer, interchaneable sleeve stabilizer, float valve stabilizer, etc api 11b sucker rod size: 3/4", 5/8", 7/8"