1牌号解释
H:冷成形用高强度扉平材，flat products of high strength for cold forming
C:冷轧，cold rolled
420:规定的小屈服强度，MPa
LA:低合金钢，low alloy steels
D:热镀代号，for hot dip coating
Z:纯锌镀层，zinc coating
A 成分(Wt%)
C碳元素:
1牌号解释
H:冷成形用高强度扉平材，flat products of high strength for cold forming
C:冷轧，cold rolled
420:规定的小屈服强度，MPa
LA:低合金钢，low alloy steels
D:热镀代号，for hot dip coating
Z:纯锌镀层，zinc coating
A 成分(Wt%)
C碳元素: