... retaining structures, reservoirs, canals, dams, bank protection, coastal engineering and construction site silt fences. Usually geotextiles are placed at the tension ... mine bag, chemical raw material bag, fertilizer bag, etc;2.Building material packing: cement bag, sand bag, cinder bag, waste ... , galenical bag; herb medicine bag; herbal medicine bag 2013 china woven geotextiles for construction road