س: ما هي العوامل التي يجب مراعاتها عند اختيار جهاز تدليك كهربائي بالجملة؟

ج:

When choosing a wholesale electric massager, prioritize durability to ensure longevity and customer satisfaction. 

Cost-effectiveness is also crucial; seek a balance between quality and price to maximize value for both your business and your customers.