... ,water-proof cloth.. SPECIAL FEATURES AND APPLICATIONS· Single Needle,Top & Bottom Feed,Flatbed,Lockstitch Machine For Extra Heavy-weight Materials. TY ... -1801 Single Needle,Bottom Feed,Flatbed,Lockstitch Machine For Ordinary Heavy-weight Materials.· Applied ... ,seating,buff,harness,jute bag,automobile top,water-proof cloth,bags,etc..