... spun silk and silk sliver manufacture since 1986. A1+, B2+, C3+, A1, B2 Dear Sir,/Ms We are TONGXIANG HESHAN ... .The quality of ourcompany's core. We mainly produce 100% spun silk yarn, and also dealing with silk/cotton ... , 210nm/2, 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 on . Hoping to ...