steel wire: 1). 6X7+FC,6X7+IWS,6X9W+IWRRC,6X9W+FC ... +IER,6X19W+FC,6X19W+IWRC 3). 8X19S+FC,8X19S+IWR Steel wire descriptions: 1). 6X7+FC,6X7+IWS,6X9W+IWRRC,6X9W ... shock load, heated and squeezed conditions, such as electric shovel, molten steel moving mechanism,etc. 3). 8X19S+FC,8X19S+IWRC,8X19W+FC ...