This is a demonstration of processing a round terminals into a heat-shrinkable tubes using a carbon ring heater.

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Related page:

No.11 Insulation of round terminals No.6 Waterproof protection for glass tubes Heat shrink tube processing of reinforcing bars Heat shrink tube processing of twigs No.12 Connector insulation Heat shrink tube processing for electric wires Heat shrink tube processing of PVC pipe Heat shrink tube processing of stainless steel pipe