We are specialized in mulberry spun silk and silk sliver manufacture since 1986. A1+, B2+, C3+, A1, B2 Dear Sir,/Ms We are TONGXIANG HESHAN ... WEIYE TEXTILE CO.,LTD, specialize in spun silk manufacture since ... , 240nm/2, 300nm/2 and A1+;B2+;C3+;A1,B2Except the silk yarn ,we also produce silk silk sliverand silk ball.A1 grade A grade and so ...