... such as BS standard, DIN standard, ASTM standard, etc. b). Cross-section area can be up to 800 sqmm (copper or aluminum ... able to bear external mechanical forces, but unable to bear large pulling force.YJV23 YJLV23Copper conductor, XLPE insulated, steel tape ... able to bear external mechanical forces, but unable to bear large pulling force.YJV33 YJLV33Copper conductor, XLPE insulated, steel wire ...