首钢特宇有花镀锌DX51D+Z Z80 钝化无油
1000镀锌：
0.5/0.6/0.7/0.75/0.9/0.95/0.98/1.0/1.1/1.2/1.4/1.5/1.8/1.9/1.98/2.0
1250镀锌：
0.6/0.7/0.75/0.8/0.9/1.0/1.1/1.15/1.2/1.35/1.4/1.5/1.8/1.85/1.95/2.0