Established in 1979, we "Yuh Chernâhave been manufacturing andexporting OEM / ODM metal components over 35 years. Our mainproduction include various forging parts, casting parts, stampingparts, CNC machining parts & welding parts. To continuously improving our products and to serving our customersproficiently, we own the testing instruments in house for strictlycontrolling goods' quality and also help customers to solvetechnical problems & reduce extra costs.It will be our great pleasure if you can provide us a chance tobuild a business relationship with you, any OEM & ODM projectsare welcomed for evaluation. Please contact ustina.su(at)challengehardware.com.tw with feedback or for furtherinformation.Â