{"id":47135,"date":"2026-03-10T11:21:04","date_gmt":"2026-03-10T11:21:04","guid":{"rendered":"https:\/\/www.alpametrology.com\/uncategorized\/double-t-black-granite-flat-parallel-level-alpa-ha135\/"},"modified":"2026-03-10T12:49:13","modified_gmt":"2026-03-10T12:49:13","slug":"double-t-black-granite-flat-parallel-level-alpa-ha135","status":"publish","type":"product","link":"https:\/\/www.alpametrology.com\/en\/inspection-plates\/double-t-black-granite-flat-parallel-level-alpa-ha135\/","title":{"rendered":"Double T black granite flat-parallel level ALPA HA135"},"content":{"rendered":"<ul>\n<li>Two parallel,plane, lapped faces with double T &#8211; shaped section for stability and lightness. The parallelism tolerance is equal to the planarity tolerance.<br \/>Diabase absolute black available upon request.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Two parallel,plane, lapped faces with double T &#8211; shaped section for stability and lightness. The parallelism tolerance is equal to the planarity tolerance.Diabase absolute black available upon request.<\/p>\n","protected":false},"featured_media":5057,"template":"","meta":{"content-type":""},"product_cat":[38186],"product_tag":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Double T black granite flat-parallel level ALPA HA135<\/title>\n<meta name=\"description\" content=\"Double T black granite flat-parallel level ALPA HA135 manufactured with two flat, parallel lapped faces with a double-T cross-section for stability and lightness. 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The parallelism tolerance is equal to the flatness tolerance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alpametrology.com\/en\/inspection-plates\/double-t-black-granite-flat-parallel-level-alpa-ha135\/\" \/>\n<meta property=\"og:site_name\" content=\"Alpa Metrology\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-10T12:49:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.alpametrology.com\/wp-content\/uploads\/b91aa111-284e-40a7-9141-0b475fcbb2a4.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1300\" \/>\n\t<meta property=\"og:image:height\" content=\"1300\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.alpametrology.com\/en\/inspection-plates\/double-t-black-granite-flat-parallel-level-alpa-ha135\/\",\"url\":\"https:\/\/www.alpametrology.com\/en\/inspection-plates\/double-t-black-granite-flat-parallel-level-alpa-ha135\/\",\"name\":\"Double T black granite flat-parallel level ALPA HA135\",\"isPartOf\":{\"@id\":\"https:\/\/www.alpametrology.com\/en\/#website\"},\"datePublished\":\"2026-03-10T11:21:04+00:00\",\"dateModified\":\"2026-03-10T12:49:13+00:00\",\"description\":\"Double T black granite flat-parallel level ALPA HA135 manufactured with two flat, parallel lapped faces with a double-T cross-section for stability and lightness. 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