Solar ballast adopts patented design with pre-assembly modular racks and fixed modules. The installation time can be reduced because there is no need for customized rack, which makes timely quotation and unified design to be achieved. It is a real non-permeation system with protecting the roof waterproof, which of front, middle and rear supports are fixed by means of concrete and other ballasts, also formation costs and assembly time can be significantly saved.
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