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Customized service: We are capable of providing customized service for type selection, structure design, product application, non-standard part development, and assisting customers in solving problems of design, application and workmanship. Swift response: Swift sample making: brand new sample, lead time 5-7 days; Swift production: lead time 5-12 days. Track the delivery until goods are received ** guarantee of all our products: 5 force and contact resistance tester on assembly lines, rare in this industry, guarantee quality **.