industries like coalmining, ship-setting up and so on which require the use of big or heavy machines or which create massive or heavy merchandise. swaar industrie ??????? ??????? ????? ???????????? indústria pesada t?žký pr?mysl die Schwerindustrie sværindustri ????? ?????????? industria pesada rasketööstus ????? ????? raskas teollisuus indus