Alternative patented method of producing heat-shrinkable tubing

Alternative patented method of producing heat-shrinkable tubing. 

Tubing with thicker walls (typically in the range of 0.080 to 0.170 in., or 2 to 4 mm) is fabricated mainly from polyolefins and is used to cover splices in the telecom, CATV, and electric power industries. Often such tubing is combined with mastic or hot melt that aids in forming an environmenfal barrier for the splice. Diameters of fhe heavy wall fubing may be up to 7 in. (178 mm) 

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