... with 1.0mm Board Thickness, Immersion Gold Finishing, Used for Telephone Purpose 1.UL,SGS,ROHS,IS09001,CE,IPC HDI ... with 1.0mm Board Thickness, Immersion Gold Finishing, Used for Telephone Purpose 1.Base Material:FR42.copper thickness:1oz3. ... designs, our products are extensively used in aerospace,medical equipment, telecommunication and other industries. For many years, our products have been well ...