1. Nyob rau hauv lub tub yees kev lag luam: kev koom tes ntawm txhuas raj, thiab dissimilar hlau vuam ntawm tooj liab, galvanized hlau, stainless hlau, thiab txhuas kav nyob rau hauv central cua txias systems.
2. Hauv kev lag luam xa hluav taws xob: vuam ntawm aluminium terminals, aluminium leads, thiab aluminium busbars.
3. Hauv kev lag luam khoom siv hluav taws xob thiab khoom siv hluav taws xob: vuam cov kav dej kub, lub cev muaj zog, thiab busbars.
4. Kuj tseem siv rau hauv kev tsim cov faucets, txuas txuas txuas, thiab cov txiv ntoo cuam tshuam hauv lub neej txhua hnub.