Pneumatic drip drip drip drip sanyi sanyi yankan da ke tattare da injin iska don motar bututun bututun mai daga 25Ko 1430m. Tare da samfurin zaɓi na OCP-89, OCP-159, OCP-160, OCP-27, OCP-326, OCP-560, OCP-610 , OCP-630, OCP-660, OCP-762, OCP-914, OCP-966, OCP-1430
