ANSI Polypropylene Backing Flange: 160mmBFPA160
ANSI Polypropylene Backing Flange: 180mmBFPA180
ANSI Polypropylene Backing Flange: 280mmBFPA280
ANSI Polypropylene Backing Flange: 500mmBFPA500
ANSI Polypropylene Backing Flange: 560mmBFPA560