... ceramic tiles (excl. polished tiles), timberGranite, marble, sand stone (cautious for black stone)Granite, marble, sand stone, microcrystal stone, ceramic tiles ... solution; and the acidic ingredient may react with steel wire, generate poisonous gas, which severely affects people’s health.It’s ... .If contacted with eyes or skin, rinse with water for 15 minutes. Call a physician if symptoms continue.This ...