Zofunikira pakuphimba:
1. Pangani chikho chowunikira kuti chiwongolere chizindikiro cha refractive, kukana mchere, kukana asidi, kukana kwa alkali, kusalowa madzi ndi zina.
2. Sungani njira yachikhalidwe yopenta, sungani ndalama, tetezani chilengedwe ndikuletsa kuipitsa kwachiwiri.
Makhalidwe a Pulogalamu ya Zhenhua:
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Perekani zida zofananira zophikira ndi chithandizo chaukadaulo chapakati chophikira kwa opanga ndi makasitomala.
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Perekani njira zogwira mtima, zapamwamba komanso zotsika mtengo zogwirira ntchito zatsopano komanso zosowa zakukula kwa makampani.
