Ceramic ferrules of alumina or zirconia, not exceeding 3 mm in diameter or 25 mm in length, having a fiber channel opening and/or ceramic mating sleeves of alumina or zirconia
Ceramic ferrules of alumina or zirconia, not exceeding 3 mm in diameter or 25 mm in length, having a fiber channel opening and/or ceramic mating sleeves of alumina or zirconia
Ceramic ferrules of porcelain or china, not exceeding 3 mm in diameter or 25 mm in length, having a fiber channel opening and/or ceramic mating sleeves of alumina or zirconia
Ceramic ferrules of alumina or zirconia, not exceeding 3 mm in diameter or 25 mm in length, having a fiber channel opening and/or ceramic mating sleeves of alumina or zirconia