Payable: copper: the balance after deducting 1.00 and the average settlement price paid by London Metal Exchange A exceeds the quantitative silver: if the spot price in London wins the silver medal. Ao: If the final gold content is higher than or equal to 1g/dmts, pay 90% of the spot price and win the silver medal in London. Deduction: copper: ton/meat: USD settlement: 0.065438 USD+0 per turn of Datang DAF Alashankou; 3.2 USD: 0.065438 USD+0 for copper and silver per pound; Silver payment is $30 /32 Torz. Ao:3.0 USD/Toz payment. Quantified as copper, silver and gold, male in the seller according to the date of bill of lading. The buyer can choose the price of metal from the date of payment, and the seller confirms that it is completely feasible to extract the receipt /C from last year's railway bill, which reflects the buyer's right to Q/page in option 3.