Generally, there are two kinds of cold steel sheet, annealed and unannealed.
In using, there are several kinds, like commercial quality, drawing, deep drawing and construction use.
网络文化经营许可证:浙网文[2013]0268-027号|增值电信业务经营许可证:浙B2-20080224-1 2007-2024 Tradevv.com. All rights reserved.