Comments on: Duty rate for Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate) whether or not coloured, with or without small quantities of accelerators or retarders. http://betterdollar.com/duty-rate-for-gypsum-anhydrite-plasters-consisting-of-calcined-gypsum-or-calcium-sulphate-whether-or-not-coloured-with-or-without-small-quantities-of-accelerators-or-retarders/ Cross Border Shopping & Flight Guide for Canadians Fri, 28 Aug 2009 13:44:53 +0000 hourly 1 https://wordpress.org/?v=5.8.9