Aggregates for Concrete

Aggregate properties significantly affect the workability of plastic concrete and also the durability, strength, thermal properties, and density of hardened concrete. This Bulletin describes types …

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Home Page

We supply foundations for living. At Hi-Grade, we contribute to the growth of our nation by supplying the foundational construction materials found in residential, commercial, industrial, …

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High Grade Materials

We understand that if we do our job well, it will help you be successful with yours. A complete supply of concrete accessories needed to ensure quality and provide customization when desired. All retail and DIY, please contact the location …

WhatsApp: +86 18221755073

Concrete Services

Since 1975, High Grade Materials has been the trusted concrete contractor for residents and businesses in the Grand Rapids area. We specialize in concrete products and concrete design …

WhatsApp: +86 18221755073

High Grade Materials

We understand that if we do our job well, it will help you be successful with yours. A complete supply of concrete accessories needed to ensure quality and provide customization when …

WhatsApp: +86 18221755073

Grade Calculator

This free grade calculator can calculate a weighted average grade. It accepts both numerical as well as letter grades. home / other / grade ... (still below 75%). This system of using a letter …

WhatsApp: +86 18221755073