Rajeev Metal Industries offers Suction Pipes with Tapered Threads. Rajeev Metal Industries is an ISO 9001: 2000 certified company. The Suction Pipes with Tapered Threads consist of steel suction pipes, which are used in all kinds of oil pumps. These are available in golden passivated finish and zinc plated finish. All seals are used in suction pipes which made of high nitrile rubber. Suction Pipes with Tapered Threads come with tapered threads for leak proof assembly with oil pumps.