[fusion_builder_container type="flex" hundred_percent="no" equal_height_columns="no" menu_anchor="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" background_color="" background_image="" background_position="center center" background_repeat="no-repeat" fade="no" background_parallax="none" parallax_speed="0.3" video_mp4="" video_webm="" video_ogv="" video_url="" video_aspect_ratio="16:9" video_loop="yes" video_mute="yes" overlay_color="" video_preview_image="" border_color="" border_style="solid" padding_top="" padding_bottom="" padding_left="" padding_right=""][fusion_builder_row][fusion_builder_column type="1_1" layout="1_1" background_position="left top" background_color="" border_color="" border_style="solid" border_position="all" spacing="yes" background_image="" background_repeat="no-repeat" padding_top="" padding_right="" padding_bottom="" padding_left="" margin_top="0px" margin_bottom="0px" class="" id="" animation_type="" animation_speed="0.3" animation_direction="left" hide_on_mobile="small-visibility,medium-visibility,large-visibility" center_content="no" last="true" min_height="" hover_type="none" link="" border_sizes_top="" border_sizes_bottom="" border_sizes_left="" border_sizes_right="" first="true"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="" rule_size="" rule_color="" hue="" saturation="" lightness="" alpha="" content_alignment_medium="" content_alignment_small="" content_alignment="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" sticky_display="normal,sticky" class="" id="" margin_top="" margin_right="" margin_bottom="" margin_left="" fusion_font_family_text_font="" fusion_font_variant_text_font="" font_size="" line_height="" letter_spacing="" text_transform="" text_color="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset="" logics=""] Kalk of Calcium ken je het best van krijt dat men gebruikt op andere schoolborden. Ons lichaam heeft calciumcarbonaat of kalk nodig. het is m.a.w. niet giftig voor je lichaam, wel slecht voor je apparaten of installaties. [/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]

Wat is kalk? | Alfacool

Kalk of Calcium ken je het best van krijt dat men gebruikt op andere schoolborden. Ons lichaam heeft calciumcarbonaat of kalk nodig. het is m.a.w. niet giftig voor je lichaam, wel slecht voor je apparaten of installaties.