4.1 wood table tennis are the shape, size, or weight, however, will have to be flat and rigid crossbow. 4.2 at least 85% of the thickness of the wood must be made with natural wood. The compressor is located next to layer within the crossbow, which to any other material, such as carbon fiber. Glass, paper, plywood, or extension, must be safai thickness does not exceed 7.5% of the total thickness of 0.35 mm or not more than wood, the most authentic, but in all cases would be less than. 4.3 the use of table tennis the crossbow hit the ball must have a material cover the material as rubber pigment plain. This type of rubber When the crossbow and cover combined with glue, then there must be total thickness not exceeding 2 mm, or rubber types with. This type of rubber when the crossbow and combined with glue cover, it must have a total thickness not exceeding 4 mm. height of granules of rubber are equal to the width of the tire beads in the ratio 1:1. 4.3.1 ordinary rubber granules (ORDINARY PIMPLED RUBBER) must be a single piece of rubber and is not supported by this bubble turned to remove the tire beads out of the rubber on the outside of the natural or synthetic rubber. Yangkrachai tablets regularly with no less than 10 tablets per 1 square cm and not more than 30 tablets per 1 square centimeter.4.3.2 types with rubber (RUBBER SANDWICH) is composed of a single type of sponge off with an ordinary piece of rubber sheet only. By removing the rubber granules are facing inside or outside. Which this ordinary rubber thickness must not exceed 2 mm thickness.
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