At Longji, we work hard to earn the loyalty of our customers by providing them world-class service every day. Our legacy of customer service, bolstered by our reliable and efficient network, is unparalleled. 
Our commitment to service is a complete guarantee that we will make every effort to be there for you. That is our pledge to you. We wish to not just satisfy but surpass the expectations of our customers. 
Our customers will simply need to dial our customer service hotline to the place of purchase should any defects or problems be found. 
Thereupon, our technicians or service engineers would be expedited to serve our said customers.