20SC4M 20SC9M 20SC9M. 20S-CBSA-0.5X0.5X0.2 20S-CBSA-0.5X0.5X0.21 20S-CBSA-0.5X0.5X0.225 20S-CBSA-0.5X0.5X0.4 20S-CBSA-0.5X0.75X0.2 20S-CBSA-0.5X1.0X0.2 20S-CBSA-0.5X1.25X0.2