块石衬砌 block stone lining

蓝宝石衬底 [电子] sapphire substrate

图形化蓝宝石衬底 PSS

铸石衬板 cast stone lining plate

图形蓝宝石衬底 Patterned Sapphire Substrate ; PSS

铜石棉衬垫 Asbestos-copper gasket

蓝宝石衬底图形化 Pattern Sapphire Substrate ; PSS

石棉衬里 asbestos lining

石墨衬垫 graphite packing