【运输】通过磁粉净化机油箱【运输】通过磁粉清洁机油箱

dry cleaning

self-cleaning

self-cleaning filter

cleanings of combustion engines having fitments facilitating their cleaning

floor-scrapers with cleaning-agent supply

ultrasonic cleaning machine【机】

cleaning of down-hole filters

squeezing plate floor-cleaning implement with squeezing plate