ck303Egg cabinet knob (CK303) and the Tw cabinet pull (CK327) shown in silicon bronze, dark lustre patina. Egg Cabinet Knob 1 18 x 1 38 Egg Cabinet Knob (CK303): 1 18 x 1 38 Projection:Pipe; Cosibelimab; Olafertinib; CK-103; CK-302; CK-303; Cosibelimab: An Anti-PD-L1 Antibody. Cosibelimab (CK-301) is a human immunoglobulin G1 (G1) monoclonal antibody