A-286螺栓A286螺栓A-286弹簧丝A-286钢带A-
GH1140圆钢GH1140钢带
GH2132圆钢GH2132..
GH2132弹簧丝GH213..
0Cr15Ni25Ti2Mo..
A-286螺栓A286螺栓A..