ASTRA is the pioneer in introducing concrete spacers (also known as cover blocks) in India. Over the years ASTRA has become benchmark of high quality in fibre reinforced concrete spacers / cover blocks. With multiple tests conducted at reputed domestic and international test labs, ASTRA cover blocks have been approved and used in various prestigious projects. ASTRA cover blocks are used in over 12 countries in Asia, Europe and Africa. We are an ISO 9001:2015 Certified Company
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