TC-Kumba Kumba District Hospital 20080411 Technicians Course Sterilization. Performing PPM on the Matachana autoclave: servicing water inlet valves Published 15 April 2016 at 1434 × 1075 in TC-Kumba Kumba District Hospital 20080411 Technicians Course Sterilization. Performing PPM on the Matachana autoclave: servicing water inlet valves ← Previous Next → Cameroon-Kumba Kumba District Hospital 20080411 Technicians Course Sterilization. Performing PPM on the Matachana autoclave: servicing water inlet valves