Grease Maker The SL-OA01 Grease Maker performs preliminary processing of cone penetration test samples by manual pressure shearing under specified test conditions in accordance with GB/T 269-2023 standards. Machine Introduction This grease tester performs the preliminary processing of cone penetration test samples through manual pressure shearing under specified test conditions, meeting the requirements of GB/T 269-2023 "Determination of Cone Penetration of Grease and