specifications (mm):

                                             0.24,  0.36,  0.46,  0.58, 

                                             0.73,  0.88, 1.03,  1.36, 

                                             1.55, 1.83,   2.43,  2.75, 

                                             4.32,  5.20,   6.25

test petrochemical product,   glass apparatus