包封套在轮胎冷硫化翻新中用于固定胎面和胎体。上海商格贸易有限公司是中国台湾“世发”和美国“罗宾”包封套的中国大陆总代理商。最近,该公司为拓展“世发”和“罗宾”包封套在我国市场上的销路,与从事轮胎翻修原材料生产10余年、在西南地区有较大影响力的四川省方兴橡胶轮 Envelopes are used to secure the tread and carcass during cold vulcanization of tires. Shanghai Trading Co., Ltd. is the grid in Taiwan, China, “the World” and the United States “Robin” envelope sets of agents in mainland China. Recently, the company in order to expand the “World” and “Robin” envelopes in our market sales, and engaged in tire repair raw materials production more than 10 years in the southwest have greater influence Sichuan Fangxing rubber wheels