standard ground stoppers
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3
Hollow stoppers, hexagonal plate, borosilicate glass 3.3