Yes, men may sell women’s silk clothing (since it can be worn by women). Men may also sell silk upholstery, since men (and a fortiori women) may use silk upholstery/rugs/etc according to Abu Hanifa. Men just can’t wear silk (with certain exceptions, such as embroidery or horizontal weaving). [Nahlawi, Durar Mubaha]
The Prophet (peace and blessings be upon him) said, “Wearing silk and gold has been forbidden for the men of my community but is lawful for its women.” [Tirmidhi]
And Allah knows best.