Compared with the PTU in July and August, there is a slight decrease. The main problem is the pits caused by the scraps, no batch cracking and thinning;
Compared with the PTU in July and August there was a small decline, the main problem is the pit bag caused by chip bruises, no batch cracking thinning;
Compared with July August, there was a slight decrease in PTU, the main problem was the pit caused by chip scratch, no batch cracking and thinning;<br>