S class size 1-5mm
SS class size 1-4mm
SL class size 1-7mm

MgCl₂.6H₂O≥40%

S class size 1-5mm
SS class size 1-4mm
SL class size 1-7mm

CaCl₂.2H₂O≥40%

S class size 1-5mm
SS class size 1-4mm
SL class size 1-7mm

MgCl₂.6H₂O≥25%

CaCl₂.2H₂O≥5%

S class size 1-5mm
SS class size 1-4mm
SL class size 1-7mm

MgCl₂.6H₂O≥25%

1#Snow-melting agent: temperature: -15°C to -25°C,usage amount is 25g-50g/M2,-15°C above for 8 days,-15°C below for 4 days.
2#Snow-melting agent: temperature: -15°C to -25°C,usage amount is 30g-50g/M2,-15°C above for 10 days,-15°C below for 6 days.
3#Snow-melting agent: temperature: -15°C to -25°C,usage amount is 20g-40g/M2,-15°C above for 9 days,-15°C below for 5 days.
4#Snow-melting agent: temperature: -15°C to -25°C,usag🃏e amount is 30g-60g/M2,-15°C a🗹bove for 6 days,-15°C below for 3 days.