This series aluminum sheet, also called pure aluminum sheet, has the highest aluminum content among all the series produced by.Its aluminum content can be more than 99.00%.As no other techniques are involved in the production, the production procedure is single and the price is cheap. It is a commonly used aluminum sheet in conventional industries.The last two numbers in the serial number are used to determine  the lowest aluminum content of this series. For example, in the 1050 series, the last two numbers are 50 and according to the corresponding international standard, the aluminum content has to reach 99.5% or more.