1570 1585 1600 12.7?12.7 ?? 1600 15.9?15.9 ?? 1600 17, 5?17 1600 6?6 mm 1600 8x8 mm 1600, 10X10 MM; 1600, 12X12 MM; 1600, 14X14 MM; 1600, 6X6 MM; 1600, 8X8 MM; 1725A 041078 1727 "1761, 1"" SQ"; "1761, 1/2"" SQ";