Double Plug Non-pressurized Collector
SPecification:
Manifold box: inner tank: Stainless steel 304-2B, 0.4mm. Outer tank: Stainless steel or galvanized steel.
Frame: Profile stainless steel, 1.2mm or more, or galvanized steel, 1.2mm or more.
Types of tubes: 47-1500, 58-1800, or othe...