CORKJOINT® Self Expanding Cork Fillerboard Complying too ASTM D1752 Type IIIClick on Image to view full screen  VIEW PRODUCT BROCHURECORKJOINT® Self Expanding Cork Fillerboard Complying too ASTM D1752 Type III is manufactured to expand according to the ASTM D1752 Type III specification and is manufactured from the bark of the cork oak tree and granulated to be compressed into blocks then cut...

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