886、丁德山对东来顺饭庄涮羊肉原料严格经过考察对比,才选用内蒙古大尾巴绵羊,而且只用二至三年的阉割公羊或仅产过一胎的母羊;还从产地买幼羊饲养,待成年后随时供用,因为要求严格,全羊有一半以上是不能用的,就制为肉丸子,做成水饺、馅饼低价出售,吸引消费者。887、冯玉祥1928 886, Ding Tak Shan Donglaishun restaurant lamb raw material strictly after inspection comparison, only use the big tail sheep in Inner Mongolia, and only two to three years of castration ram or only produced one-ewes of ewes; also from the origin to buy sheep feeding, To be available at any time adult, because strict requirements, more than half of the whole sheep can not be used, the system made of meatballs, made dumplings, pies cheap to sell, to attract consumers. 887, Feng Yuxiang 1928