He was going to the quarry to see if they also used copper coins for transactions. If so, he would take his silver and exchange it for copper coins first, then use the copper coins to pay, making a profit on the difference.,Looking at Rong Mama's back as she carried a bamboo basket, Yan Yu fell into deep thought.,This is all junk, one hundred coins for a cart. Their carts are small, full of them would barely be enough for what's on my cart.。