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Makina a Plunger Lubricant Drip a makina oponyera kuchipinda chozizira
Mbali
1. Kupaka kothandiza, mtengo wamafuta ndi theka la njira zina zokometsera.
2. Mafuta ocheperako, kusintha kwa mpweya wochepa, kumachepetsa bwino mkati mwa kuponyera (makamaka hydrogen stomata).
