We use the newest in CAD computer software to make sure micrometer precision. We Lower to the 1000th of the milimeter with our large precision laser CNC equipment and fold using our built-in CNC Press brakes. This would make us Among the most correct and exact manufacturers in the UK. https://grease-tight-extract-duct01223.blogtov.com/17519960/the-fact-about-grease-tight-extract-ductwork-that-no-one-is-suggesting