1.Under what circumstances are hollow bolts mainly used and what are the advantages?
Hollow bolt is also called oil bolt, and its sealing form is hinged type. The utility model is used for sealing the oil pipeline. Widely used in automobile, ship, machinery and other engine oil supply system, and hydraulic pipeline system. Hollow bolt has the dual functions of fastening and oiling. The use of hollow bolt can simplify the mechanical structure and reduce the manufacturing cost of the machine.
2.How could I get a sample?
Before we received the first order, please afford the sample cost and express fee. We will return the sample cost back to you within your first order.
Existing items: Within 3 days.
4.Whether you could make our brand on your products?
Yes. We can print your Logo on both the products and the packages if you can meet our MOQ.
5.Whether you could make your products by our color?
Yes, The color of products can be customized if you can meet our MOQ.
6.How to guarantee the quality of your products?
1) Strict detection during production.
2) Strict sampling inspection on products before shipment and intact product packaging ensured.