六角头螺钉及螺柱 meaning in English
standard specification for stainless steel bolts hex cascrews and studs
Examples
- Standard specification for stainless steel bolts , hex cap screws , and studs
不锈钢螺栓,六角头螺钉及螺柱标准规范
standard specification for stainless steel bolts hex cascrews and studs