Sgrin Sgriw

3 plât rhidyll 3,5 m gwahanol gyda diamedr 70 cm

Meintiau rhwyll:

Plât rhidyll 1: Tyllau rhidyll crwn diam 60 mm

Plât rhidyll 2: Tyllau rhidyll crwn diam 20 mm

Plât rhidyll 3: Tyllau gogr hirgul 70 × 15 mm