June 14, 2023July 25, 2023 admin Worm Gear WPA Size 40-50-60-70-80-100-120-135-155-175-200-250 Casing Cast Iron Ratio 1/10-1/60 Worm Gear WPO Size 40-50-60-70-80-100-120-135-155-175-200-250 Casing Cast Iron Ratio 1/10-1/60 Worm Gear WPX Size 40-50-60-70-80-100-120-135-155-175-200-250 Casing Cast Iron Ratio 1/10-1/60