GTC -58s-alu type is our new design for  house  and projector installation, rang from 10tube,15tube, 18tube, 20tube, 24tube, 30tube per unit, gtc solar collector are widely used with hot water for bath room, washing cloth ,room heating, central heating, floor heating , swimming pool,wool washing, green house and other high performance high tempreutre purpose. and also our solar system are designed connecting with the gas heater or rediator or electric heater for back ing up  so to save more energy and use water freely. gtc solar make lots of project like some five star hotel, united union projector, and green house project,swimming pool projector.....etc. gtc solar always make our solar sytem with better quality and new solutions and new technology to make our solar sytem get more efficiency. also gtc solar always thinking ways out for our customers to make new designations and new products. also we are producing and designiing  according to customer's requestment and give solutions .GTC-58S-ALU series can make from 15tubes to 30tubes or more,and capacity from 150L to tons .