2024年2月12日发(作者:雪像什么)Designation: A 913/A913M-04 名称:A 913/A913M-04(Translator:Helen) Standard Specification for High-Strength Low-Alloy steel shapes of structural quality, produced by quenching and l
I C S25.180.10K61中华人民共和国国家标准G B/T30839.45 2015工业电热装置能耗分等第45部分:箱式淬火电阻炉E n e r g y c o n s u m p t i o n g r a d i n g f o r i n d u s t r i a l e l e c t r o h e a t i n s t a l l a t i o n sP a r t45: