Specification Material: steel and adc12 aluminum, molded by 800t automatic machine by one step. Surface: spraying with epoxy-colophony powder, roasting twice in 190-200centigrade degree, make the surface smooth and keep the paint permanent. Central distance(h): 500mm Thermal output: 202w/pc Radiating area: 2.5-3.3square meters/pc Connecting size: 1" or 3/4" or 1/2" Weight: 2.47kgs/pc Size: 550*80*95mm Water content: 0.38l/pc Working pressure: 1.0-2.0mpa/20kgs Certificates:ce, rohs, iso9001:2000, iso/ts16949, en422 Trademark: warmguard Productivity: 300, 000pcs/month Delivery time: 12 days after seller receives 30% deposit or l/c Packing: shrink bag, bubble bag, carton box Carton size: 815*105*585mm/10pieces Container load: 20"fcl 9240 pieces, 40"hc fcl 22680 pieces