That depends on which steel plant, Jiuquan Steel, Lianyuan Steel, and some steel plants have more than ten tons of coiled plates.

Most other steel mills are between 20 and 30 tons. The largest one has seen a roll of 56 tons, so it is called the big one ~ ~ ~ ~

Q235 can be divided into Q235A, Q235B, Q235C, Q235D and Q235E.

Q235 usually refers to Q235A and Q235B. Q235A is generally cheaper than Q235B. Q235A only guarantees chemical composition but not mechanical properties, and Q235B also guarantees mechanical properties.

Q235C, Q235D and Q235E are steel varieties. They are not ordinary carbon plates and are used in applications requiring high mechanical properties.