are the upper covering layer followed by respectively the transverse weft threads p1f the inner warp inlay threads st2 four layers of diagonal weft threads d further inner warp inlay threads st3 transverse weft inlay threads p2f and a lower covering layer of warp inlay threads st4 which are all held together by stitches m made from warp threads k1 to k10 it will be seen that the warp inlay threads st1 to st4 are always separated from each other by weft threads and thus although they are parallel and run with separation from each other always maintain their position needless to say utilizing the above described warp knitting machine there may be produced warp knitted fabric with a smaller number of diagonal weft threads transverse horizontal weft threads and warp inlay thread layers lying upon each other in any event however it is possible to provide two layers of mutually crossing diagonal weft threads by means of a single sled ds in this manner one may achieve fabric with extraordinary strength in the diagonal direction since at least double the normal number of diagonal weft threads are provides which moreover are distributed in the fabric in an extremely regular manner on both sides of the at least four layers of diagonal weft threads d there can be provided at least one layer of warp inlay threads and or transverse weft threads it is thus possible to provide a fabric having a plurality of layers of reinforcing threads and there may thus be obtained a.