1/8 means that an inch is divided into eight parts on average, that is, 1/8 * 25.4 = 3. 175 mm.

The concept of 1/4 is the same as above, which is 6.35 mm.

The concept of 3/8 is the same as above, that is, 525mm.

Refers to the diameter of the mould water pipe;

The larger the waterway, the better the refrigeration and heating efficiency;

Generally speaking, 1/4 is widely used, depending on the product structure and mold structure;