This is 70 yuan per catty and 33 yuan per catty.

40 yuan per catty, 40 batches.

26 yuan per catty, 52 batches.

24 yuan per catty, 65 batches.

20 yuan per catty, 68 batches.

Per catty 10 block, 75 batches.

6 yuan per catty, 79 batches.

5 yuan per catty, 80 batches.

All the above are Grade A goods, and Grade B goods are about cheaper 10 yuan a catty.