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QC Solar has three factories worldwide, two of which are located in Suzhou and Huai'an,and one in Vietnam. Two production factories are fully equipped with 80 automatic program-controlled injection machines, 46 assembly test lines and 26 automatic wiring harness and connector automatic assembly production lines imported from Switzerland and Japan.QC Solar has established a product testing center for connectors, which can ensure the quality of mold development, injectionmolding, circuit design welding, assembly and test.