VALVES AND OTHER PIECES; ALL IN 3D DWG , VERY USEFUL , MUCH FOR PIPES AND CONSTRUCTIVE DETAILS HOW FOR REFRIGERATION AT INDUSTRIAL LEVEL . ARE SEVERAL FILES COMPRESSED INTO ONE
VALVES AND OTHER PIECES; ALL IN 3D DWG , VERY USEFUL , MUCH FOR PIPES AND CONSTRUCTIVE DETAILS HOW FOR REFRIGERATION AT INDUSTRIAL LEVEL . ARE SEVERAL FILES COMPRESSED INTO ONE