merit of corrosion-resistant, acid alkali-resistant, non-toxic antifreeze heat-resistant 1. a solid durable 1. FRP and resin from an injection molding curing, no weld; 2. High-quality raw materials, its elements are close, homogeneous, in addition, raw materials to add anti-ultraviolet agent, not fading; 3. It has the merit of corrosion-resistant, acid alkali-resistant, non-toxic antifreeze heat- ...