The Mak Mandin Industrial Estate forms the heart of Butterworth 's manufacturing sector .
Is home to a number of major local firms , including Federal Oats Mills , Fujikura Federal Cables and Zenman Industries .
The Mak Mandin Industrial Estate forms the heart of Butterworth 's manufacturing sector and is home to a number of major local firms , including Federal Oats Mills , Fujikura Federal Cables and Zenman Industries .