Contraction / Shrinkage Scale is basically a type of pattern making scale which is used for different materials. Application of this instrument can be noticed during metal casting process when pattern is utilized to develop sand based mold cavity. This product is an oversized scale that compensates shrinkage allowance. This scale is used based on the shrinkage value of different materials. Contraction / Shrinkage Scale is suitable to be used for metals like aluminum, brass, tin, lead, steel and copper that have specific shrinkage value.
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