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Services Center

1. OEM Services                                                                                                                                                      


OEM is our biggest business parts. We cooperated with customers from France, India, United Kindom,Germany etc, most of them are offered with OEM services. We can print your own brand packing box, logo and users manual for products or meet your other demands. OEM services is free of charge if your order quantity is up to our MOQ requirements. Welcome your OEM orders.


2. Frequently Asked Questions                                                                                                       

Here we listed some of the Frequently Asked Questions, if you have more, just feel free to ask us at any time.    
1). What are my payment options?
For samples, it is 100% in advance.
For mass production, it is 30% in advance and 70% balance.
Welcome to use West Union, TT. bank account and Paypal.

2). How long will it take to ship my order?
As long as there is stock available, Longsin usually ships items within 3 work days for samples and within one to two weeks for formal order once receiving the confirmation of a new order. The order will not be confirmed until the payment reaches our bank account. If Longsin are temporarily out of stock, Longsin will do our best to inform you of the estimated lead time.

3). What does your warranty cover?
Longsin's product is backed by a 2-year limited warranty against manufacturing defects (material or workmanship). Missing/lost or worn out parts are not covered under our warranty.

4). Who will pay the freight for repairing items?
Both parties will share half the freight: the buyer will take the freight of sending it back to Longsin,while Longsin will cover that of sending it back to the buyer.  And Longsin suggests to send it back with the next mass production items.

5). Can I return product for credit?
Sorry, crediting product is unacceptable for now.

6). What is the ship term?
EXW/FOB SHENZHEN OR FOB HONGKONG.

7). What does FOB mean?
FOB stands for Free On Board which is a term that is used with an identified physical location to determine a) the point at which title for the shipment passes from the seller (Server Products) to the buyer AND b) the responsibility and basis for payment of freight charges.

8). Who pays the freight charges when terms are FOB?
Buyers or the third party notified by buyers will bear the freight. The freight can be collected or prepaid. Your forwarder will always be Longsin’s first choice. If you have no forwarder, we are honored to appoint a forwarder for you.

9)How can I get your price list?
Please send us your email or sales call +86-755-36962088 for our price list and order information.

10). How to place an order?
Please send PO to Longsin and Longsin will send back a PI accordingly. You will wire the payment and send T/T copy for our reference. Then the products will be in preparation. After getting the payment, the items will be sent out ASAP.