Generally, most of the manufacturers including Shanghai Green Tech Co.,Ltd. would love to refund the graphene battery pack sample charge to purchasers if the order is placed. Once customers receive the product sample, and decide to cooperate with us, we can deduct the sample fee from the total cost. Moreover, the larger the order quantity is, the lower the price per unit will be. We promise that customers can get a very preferential price and quality assurance from us.
Shanghai Green Tech, a manufacturer and supplier of graphene supercapacitor for sale, has been regarded as a credible and competent market player in China. Shanghai Green Tech produces a number of different product series, including graphene battery. Professional knowledge is used in the design of GTCAP supercapacitor. The R&D team utilizes the theories of the photoelectric effect, photochemistry reaction, and photothermal conversion to maximize the performance of the product. Shanghai Green Tech has formulated a strict quality control system and the operation flow.
We are committed to the operation principle of "integrity- and customer-orientation". We will do business with clients on the basis of mutual benefits and strive to offer products with a value of money.