Khói Trắng

Mai Ngọc Căn

Bao, worker

Hoa Van

Duoc, foreman

Mạnh Linh

Quyet, party secretary

Kim Thanh

May, controller

Lân Bích

Hoa, worker

Minh Đức

Bien, laboratory assistant

Anh Thái

Thanh, union member

Tiem Ton

Xuan, union's director