Не могу найти правильное название crop-bows в первом абзаце.

А во втором forces from installation - тоже никак сообразить не могу, и slip blocks with slipping load помогите плиз)

End gable walls: crop-wires nr. 9 (3.8 mm) with a pull-force of 3,235 N, with wire-distance of 960 mm c.t.c., with a minimal sag of 250 mm and with crop-bows with a minimal rounding of 270 mm at maximal 2,300 mm under the gutter.
Screening: Forces from a single, horizontal, screening installation, calculated with forces as described below.
- 4 pull wires per 9.60 m, with pre-tension of 1,000 N and 17 slip blocks with slipping load of 50 N.
- 24 polyester wires per 4.80 m, with pre-tension of 150 per wire.
- 2 steel wires per 9.60 m, with pre-tension of 1,000 per wire.

Заранее всем преогромное THANK YOU