1. Ihe na-egbochi ọkụ, nkwa nchekwa
2. igwe anaghị agba nchara shei anticorrosive na uzuzu uzuzu.
3. Nwere bọtịnụ PC, mgbanaka mkpuchi mmiri silicone.
4. Ọrụ dị elu, siri ike na ntụkwasị obi.
Enwere ike iji ngwaahịa a na:
Ụlọ ịsa ahụ, ụgbọ njem, ngwa nchekwa, ngwa ụlọ, ngwa ahụike, mmalite, njikwa ohere, wdg.