Is it hard for Kangning Hainan Company to work in Class Four and Class Two?

Kangning Hainan Company has worked hard in Class Four and Class Two.

Corning Hainan Company's four shifts and two shifts actually refer to each shift 12 hour, with a 24-hour rest and two days' rest. Working long hours will make you tired.

Corning Hainan Optical Communication Co., Ltd. was incorporated in Hainan Provincial Administration for Industry and Commerce on April 6, 2004.