2026-04-14 09:51 浏览次数 23
钢螺栓
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service
高温设备用合金钢和不锈钢螺栓材料的标準规范
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service
低温用合金钢螺栓材料规格