1. Feature:
More Choices of the working layer materials, controllable metallography microstructure, higer hardness. Welding layer beneath the tips can be weld with contact bridge or reed, so the assemblies posess higher reliability and the contact cooling condition will be better. Covered with solder, tips can meet the requirements of automatic welding.

2. Munufacturing Process:
Pre-oxidation      Final-oxidation

  Ningbo Hanbo Precious Alloy Co.,Ltd.is located on Zhenhai,Ningbo with registered capital of 60 million RMB.Our company has the building area of 28000M2.We mainly manufacture silver based electrical contact materials.,contact rivets and contact assemblies,and plan to manufacture silver based electrical contact materials 200 ton,contact rivets and its assemblies 5 billion annually.Our company has already adopted the Management system Certification of ISO/TS16949:2009,ISO9001:2008 AND ISO14001:2004.

  We have the first-class production facilities and testing facilities,advanced technology and full range of products.We are the Science and Technology Enterprises and Cleaner Production Enterprises in Ningbo. Automobile Electronic Contact Materials Engineering  (Technology) Center was established in our company.The products are widely used in automotive relays,sealed relays,general relays,magnetic holding relays and contactors,circuit breakers and other industries and fields.

  Our company is responsiblefor manufacturing electrical materials as national brand,adhere to the "self-improvement business,independent innovation" road,is committed to the development of environmental protection and energy saving products.Our goal is to become a well-known company,the leading manufacturer of electrical and electronic materials in the world,and for the sustainable development of human society to contribute a force.