Stretched canvas

1) Composition:
    a) E5308: 100% cotton unbleached 280gsm
    b) E5309: 100% cotton bleached 280gsm

c) E5305: 100% cotton unbleached 380gsm

d) E5306: 100% cotton bleached 380gsm
2) Styles:
    a) Staples on side
    b) Nails on side
    c) Staples on the back
    d) Staples free
    e) Nails on side and staples on the back
3) Edge thickness: 3/4", 1.5", 3"
Chinese largest sources of stretched canvas