Guangzhou Yafang Consultant Co.,Ltd is one company that specialize in serving expat in china. We have professional team work for expat in China. Our service items includ China Business invitation letters, China visa extension,China expired visa renew ETC. 1)China business invitation letters we can offer you many city's I.V. and can offer one year multiple entry,6 month multuple entry and one month one entry ETC. document requirement: passport copy + former visa copy processing time: ...