KHABAROVSK, Russia—When Chinese delegations visit the sprawling Central Food Market in Khabarovsk, 18 miles from the Russia-China border, they head for the main attraction: butcher stalls heaped with pork, chicken and beef.

“They come to see what our quality of meat is like,” said Valery Slutsky, head of advertising for the market, where more than 3,000 vendors sell everything from honey and caviar to cottage cheese and Siberian chocolate.

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