Galleria Continua, Beijing and San Gimignano, Italy, which promotes work by such artists as Anish Kapoor, Carlos Garaicoa, Mona Hatoum and Daniel Buren, found few takers. ???Chinese buyers are not yet ready to buy non-Chinese art,??? says Continua???s Beijing gallery manager Frederica Beltrame, noting that even though gallery officials did not expect major sales, they were disappointed by the low