div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Full page photo - Petro Tar CoThe most popular grades of oxidized bitumen are grades 8525 9525 9040 and 1 1515 PETRO TAR CO capable of producing all grade of Blown Bitumen src=https:reader033fdocumentsusreader033viewer20220428115fa7cb7625d5030f7f267661html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Full page photo - Petro Tar CoThe most popular grades of oxidized bitumen are grades 8525 9525 9040 and 1 1515 PETRO TAR CO capable of producing all grade of Blown Bitumen src=https:reader033fdocumentsusreader033viewer20220428115fa7cb7625d5030f7f267661html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: Full page photo - Petro Tar CoThe most popular grades of oxidized bitumen are grades 8525 9525 9040 and 1 1515 PETRO TAR CO capable of producing all grade of Blown Bitumen src=https:reader033fdocumentsusreader033viewer20220428115fa7cb7625d5030f7f267661html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: Full page photo - Petro Tar CoThe most popular grades of oxidized bitumen are grades 8525 9525 9040 and 1 1515 PETRO TAR CO capable of producing all grade of Blown Bitumen src=https:reader033fdocumentsusreader033viewer20220428115fa7cb7625d5030f7f267661html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 5button div class=trans-image amp-img class=trans-thumb alt=Page 5: Full page photo - Petro Tar CoThe most popular grades of oxidized bitumen are grades 8525 9525 9040 and 1 1515 PETRO TAR CO capable of producing all grade of Blown Bitumen...