алхан бутлуур бүтээгдэхүүний 1 1
цементийн үйлдвэрийн бутлуур Монгол улс уул уурхайн 1 2 Headquarter of GBM is located in Shanghai China and now we have two manufacturing bases as our strong support One is located in Shanghai about 450 000 square meters and the …