It is an exact copy of the American MIC UBM-240 machine, except the control stand is in a different place and the coil holder is not on the machine. The panels it produces are the exact same.

Textbook shows PEMB collapsing since 1993 during hurricane. Sanxing Kspan is a good fix. Spring steel in the crimped crown? Hurricane brackets to hold down when a hurricane and a building permit would be issued. This is my choice for a PEB or PEMB putting on a good roof.

Very good job