Cement bag which is considered good needs to achieve 3 factors :
Containing capacity
Hygroscopic capacity
Waterproof capacity
The cement bags have 2 types which are composed of one or two layers.
Single layer type made from PP material, with the fixed bottom.
Double layer type (KPK) :
+ The outer layer is a KP complex film (with 1 Kraft paper layer sticking to 1 laminated PP plastic ).
+ The inner layer is Kraft paper.
Sao Mai is supplying the main products of cement bags to the manufacturing plants, such as: Vissai Cement, Bai Hat Gianh, Nghi Con Trai, Vicem Hoang Mai, Dong Lam... Besides, we have been supplying other types of bags to the overseas markets: Thailand, Malaysia, Singapore, Japan, Cambodia, Laos, Canada and USA