Content. 9mm screw closures 100 pcs are packaged in a bag, aijiren¡¯s smallest unit is 100pcs, via is a box of 100 pcs, 9mm screw closures are suitable for 9mm hplc vial, adopt the form of combining cap and septa, aijiren has a machine that combines cap and septa For mass production, aijiren’s output is inseparable from fully automatic