At present, the taps used in the laboratory furniture on the market are mainly made of stainless steel and copper. What is the difference between the two? The First, whether it contains lead The Stainless steel is lead-free, acid-resistant, alkali-resistant, non-corrosive, does not release harmful substances, and does not pollute your tap water source. It is good for human health, hygiene and environmental protection. Copper contains lead, and it will contain lead and growth rust in varying degrees, polluting your tap water source.