Was the glass needle a flat-headed needle in the 1970s and 1980s?

In the 1970s and 1980s, glass needles were not flat-headed needles.

After consulting the relevant data of the instrument network, 10 to 12 oblique needles are used in the application of life science. Flat-headed injection needle for hplc injection valve and sample pipette.

The needle is a stainless steel tube with an outer diameter of 0.36 to 5. 16 mm, which is used for surgical instruments and radon implanters.