Taking the Tedium Out of Cutting. Modern diamond cutting equipment also greatly reduced concrete cutting time and labor. It is dangerous to repair/cut concrete by so- called economical methods having poor workmanship that often lead to trouble. Since powerful hand tools have become available, economical grinding of vertical concrete surfaces has become possible. Hand grinders with totally enclosed 4. Proper sealing of cracked concrete slabs has always been a problem. Now machinery has been developed that uses high speed diamond grinding wheels to grind random cracks economically. The diamond wheels on these machines turn in excess of 1. Crack grinding with this unit is economical, dust free, and fumeless and the patching of cracks after grinding is permanent. IS 10016-1 (1981): Methods of Test for Polybutadiene Rubbers, Part 1: Method of Taking Out Test Portions from Sample Bales You are viewing our new enhanced HTML article. If you can't find a tool you're looking for, please click the link at the top of the page to 'Go to old article view. 1981: Israel bombs Baghdad nuclear reactor. A Chronology of the Conflict - 1981. July 1981 Those Republican prisoners taking part in the hunger. When Arthur came out in 1981, I thought the trailers looked stupid. But I finally broke down and saw the film. I was not in the best of moods walking into the theatre.
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