黄铜板 黄铜棒H68进口黄铜价格 H70黄铜硬度说明
易切削钢：Y12 U71122 Y12Pb U72122 Y15 U71152 Y15Pb U72152 Y20 U70202 Y30 U70302 Y35 U70352 Y40Mn L20409 Y45Ca U73452
冷墩和冷挤压用钢：ML04Al U40048 AL08Al U40088 ML10Al U40108 ML15Al U40158 ML15 U40152 ML20Al U40208 ML20 U40202 ML18Mn U41188 ML22Mn U41228 ML20Cr A20204 ML25 U40252 ML30 U40302 ML35 U40352 ML40 U40402 ML45 U40452 ML15Mn L20158 ML25Mn U41252 ML30Mn U41302 ML35Mn U41352 ML37Cr A20374 ML40Cr A20404 ML30CrMo A30304 ML35CrMo A30354 ML42CrMo A30424 ML20B A70204 ML28B A70284 ML35B A70354 ML15MnB A71154 ML20MnB A71204 ML35MnB A71345 ML37CrB A20378 ML20MnTiB A74204 ML15MnVB A73154 ML20MnVB A73204
弹簧钢和轴承钢：65 U20652 70 U20702 85 U20852 65Mn U21653 55SiMnVB A77552 60Si2Mn A11602 60Si2MnA A11603 60Si2CrVA A28603 55SiCrA A21553 55CrMnA A22553 60CrMnA A22603 50CrVA A23503 60CrMnBA A22613 30W4Cr2VA A27303
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