- Isupergluedtheswitchandthesolderedthecontacts.Iendeavouredtouncapthecasement,butthehookwassolderedintothestaple.Airdistributionpipingsystemsalmostinvariablyusesoftcoppertubingwithsolderedfittings.Butninedayslaterasingleelectricalspliceoverheatedbecau...
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