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Regelmatig zie ik dat installateurs zich op mijn vakgebied begeven, terwijl ze meestal niet over de juiste kennis en tools hiervoor beschikken. De kans bestaat dat je als installateur dan fouten maakt, net zoals dat mij overkomt als je mij installatiewerk laat verrichten. Is over en weer bijscholing niet mogelijk dan? Dat wil ik zeker […]