荣坤·次仁桑主,又名马铸材,藏族,中甸(今香格里拉)人。少时家贫,失学进“公和昌”商号当店员。成年后从事马帮贩运,往来于滇、川、康、藏及印度之间。1920年后侨居印度噶伦堡,经商四十余年,为印度的经济和社会发展作出了贡献。抗日战争期间,带动大批兄弟民族商贩、马帮扩展滇、藏、印“三角贸易”,发展民族经济,并合献飞机一架,支持抗日。铸材为人耿直,急公好义,热心公益事业,团结华侨维护祖国尊严。1959年,侨居国的反动势力胁迫其叛国遭拒绝,便制造“杀人案件”栽赃陷害铸材入狱。铸材宁死不屈。后经中国政府严正交涉营救出狱回昆明定居。被张冲将军称赞为“中国的铁汉子”,陈毅元帅誉为“爱国华侨的一面旗帜”。——云南省文史馆《云南先贤碑廊》 Rongkun times second Sang main, also known as Ma cast material, Tibetan, Zhongdian (now Shangri-La) people. When the poor are poor, they are out of school into the “public and chang” firm as clerks. Adult engaged in caravan trafficking, contacts between Yunnan, Sichuan, Hong Kong, Tibet and India. After living in Kalimpong, India for more than 40 years after 1920, he contributed to India’s economic and social development. During the War of Resistance Against Japanese Aggression, a large number of brothers and ethnic traders were led and the caravans expanded the “triangular trade” between Yunnan, Tibet and India to develop their national economy. They also put together a plane to support the anti-Japanese war. Casting people upright, urgency and good, justice, charity, unity of overseas Chinese to safeguard the dignity of the motherland. In 1959, the reactionary forces of the host country denounced their treason, they created the “murder case” and put the materials in prison. Casting die rather than die. After the Chinese government solemnly rescued from prison to settle in Kunming. General Zhang Chong praised as “China’s iron man,” Marshal Chen Yi as “a patriotic flag of overseas Chinese.” Yunnan Provincial Museum of History “Yunnan Sages Beibei”