Three types of material; dimensions, plastic yield, cross breaking strength.

BS 3164:1959
Original price was: $264.16.$132.00Current price is: $132.00.
Specification for loaded and unloaded ebonite for general purposes
BSI Group , 11/30/1959

Original price was: $264.16.$132.00Current price is: $132.00.
Specification for loaded and unloaded ebonite for general purposes
BSI Group , 11/30/1959