Specially galvanized and greased means  a much heavier zinc coating than required by standards and an internally as well as externally applied tough grease that sticks to the wire rope much better than the often used vaseline. Our trawl warps are made of wires with 1570 N/qmm tensile strength. Earlier tests have proved that the higher 1770 N/qmm tensile strength is too brittle when working with relatively small diameter trawl blocks.