In Dalian Commodity Exchange, soybean meal, soybean oil and palm oil futures can adopt warehouse standard warehouse receipt or factory warehouse standard warehouse receipt. The rebar and wire futures contracts of Shanghai Futures Exchange are also allowed to be delivered through standard warehouse receipts. The standard warehouse receipts of Zhengzhou Commodity Exchange are divided into general standard warehouse receipts and non-general standard warehouse receipts. General standard warehouse receipt refers to the title certificate that the holder of standard warehouse receipt can choose to pick up the goods at any delivery warehouse of the exchange where the variety specified in the warehouse receipt is located according to the regulations and procedures of the exchange; Non-general standard warehouse receipt means that the warehouse receipt holder can only pick up the title certificate of the corresponding goods in the delivery warehouse specified in the warehouse receipt according to the regulations and procedures of the exchange.