hat
matyè premyè, résine a ak fib, yo se nan rezistans nan asid ak alkali. Montre eksperyans nou an, tranpe Angu twati respektivman nan asid HYDROCHLORIC (15%), oswa asid silfirik (20%), oswa kalsyòm SODIUM (5%), oswa asid fluoridrik (40%), li kenbe pèfòmans fizik li yo ak aparans.
eng
the raw materials, resin and fiber, are of resistance to acid and alkali. Our experiment shows, soaking Angu roofing respectively in hydrochloric acid (15%), or sulfuric acid (20%), or calcium hydroxide (5%), or hydrofluoric acid (40%), it keeps its physical performance and appearance.