Polystyrene board full name polystyrene foam board, also known as foam board or EPS board. It is a white solid with a fine closed cell structure which is formed by a expandable polystyrene bead containing a volatile liquid foaming agent and heated and formed in a mold after heating and preheating. Form as we buy the shockproof foam inside the furniture. Auction is a kind of spot trading mode in which an auction house specializing in auction business accepts the entrustment of the owner of the goods, displays the goods to be auctioned to the buyer at a specified time and place in accordance with certain rules and regulations, bids publicly, and finally the auctioneer sells the goods to the buyer with the highest bid. Pristine Auction,Online Auction Antique Furniture,Antique Online Auction,Online Auction Art The universe in the stone is great , https://www.zdsarts.com