div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader042fdocumentsusreader042viewer20220225135af0bd5f7f8b9ac57a8f00f9html5page1jpg target=_blank img data-url=documentmacs-catalogue-special-duct-work-manufactured-to-the-following-specificationshtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: MACS CATALOGUE SPECIAL BLACK • DUCT WORK MANUFACTURED TO THE FOLLOWING SPECIFICATIONS: • SMACNA • DW142144 • GALVANIZED STEEL TO ASTM A527653 ZINC COATING LOCK • FORMING loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsusreader042viewer20220225135af0bd5f7f8b9ac57a8f00f9html5thumbnails1jpg width=140 height=200 adivp2pdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader042fdocumentsusreader042viewer20220225135af0bd5f7f8b9ac57a8f00f9html5page2jpg target=_blank img data-url=documentmacs-catalogue-special-duct-work-manufactured-to-the-following-specificationshtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: MACS CATALOGUE SPECIAL BLACK • DUCT WORK MANUFACTURED TO THE FOLLOWING SPECIFICATIONS: • SMACNA • DW142144 • GALVANIZED STEEL TO ASTM A527653 ZINC COATING LOCK • FORMING loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsusreader042viewer20220225135af0bd5f7f8b9ac57a8f00f9html5thumbnails2jpg width=140 height=200 adivp3pdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader042fdocumentsusreader042viewer20220225135af0bd5f7f8b9ac57a8f00f9html5page3jpg target=_blank img data-url=documentmacs-catalogue-special-duct-work-manufactured-to-the-following-specificationshtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: MACS CATALOGUE SPECIAL BLACK •...