Flux is a liner, including Flux - air-cushion, Flux hard liner, curing Flux liner, and other other is copper liner and Flux - combinations of copper liner.

• 一类是用焊剂衬垫，包括焊剂?气垫、硬焊剂衬垫、固化焊剂衬垫等；另一类是用铜衬垫及焊剂?铜组合衬垫。