The pig's trotters, which cost 33 yuan a catty, were shipped by Gaoling. According to public information, pig's trotters are sold by the catty, with a catty of 33 yuan and a catty of sheep's trotters of 30 yuan. Xi Gaoling Baiyun Catering Management Co., Ltd. is an enterprise specializing in catering industry, located in Weijiamiao, Luyuan Street Office, Gaoling District, Xi.