Please experts advise, the production of 1 ton of coated sand raw materials, how much each need, about how much cost?
Oh, so the cost is not good to calculate the different price of the original sand is not the same, different ways of production, then the cost is certainly not the same, but the profit is certainly
There are other iron red and other additives can also be added to the sand
The ratio is not the same as the resin accounted for more than ten percent of the sand, Urotropine accounted for long duo short Xin of the geese rejuvenated resin resin a few percent, and calcium stearate is also the amount of resin A few percent This is out of the general coated sand
