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Identification de la qualité de l'ardoise
1. Flatness inspection Place a steel flat ruler with a straightness tolerance of 0.1mm on the two diagonal lines of the inspected surface naturally, and ...
Inspection des angles Qualité de l'ardoise
It is measured with a 90 degree steel square with an internal angle perpendicularity tolerance of 0.13mm and an internal angle side length of 500mmx400mm. ...
Inspection de la qualité de l'apparence de l'ardoise
1. Steps Use a vernier caliper to measure the height of the steps, and measure the maximum value as the height of the steps. 2. ...
Ardoise Aspect Qualité Inspection Qualité
1. With pattern and color tone, put the qualified board and the tested board flat on the ground, standing at a distance of 1.5m from ...
Application de l'ardoise dans l'amélioration de l'habitat
The scientific name of slate bluestone is limestone. It is the most widely distributed rock among sedimentary rocks. It is produced all over the country. ...
Les carreaux de granit sont-ils bons pour le sol et les murs de la salle de bains ?
Are Granite Tiles Good For Bathroom Floor and Wall Paving in Daily Life? Natural granite tiles are attractive, durable and versatile, and come in many ...