Channel steel
        
                   
                    
                
        
     
        
					
        Main material
        Q235B. In line with the GB/T700-2006;
        	  
        Surface treatment
        Galvanized sheet (containing zinc, aluminum and magnesium); Hot-dip galvanizing;
        Galvanized sheet (containing zinc, aluminum and magnesium), the thickness of zinc layer is 20 meters (275g/㎡), which conforms to GB/ t2518-2004; Hot-dip galvanized, the zinc layer thickness is not less than 60 meters, in accordance with GB/ t13912-2002.
        	
				
        
            
        
            
        
                
        	
        	
        	
        
            
        
        
        
        
        
            
        
                
        Channel steel Series product list
        
                
        
            
        
     	
            		
        
		<1>
			
        
			 	
        
        
    
        

    


        
    
        
        
        
            
            
        
                
        Customer service lines
        
                
        400-666-1688
        
            
        
            
            
        

                
                
        
                    
        
                        
                    
        
                    
        Wechat platform
        
                
        
                
                
        
                    
        
                        
                    
        
                    
        Official website
        
                
        
                
            
        
            
            
            
        
                
        Copyright ?2019 深圳優(yōu)力可科技股份有限公司 All Rights Reserved  
        粵ICP備18099211號(hào)-1Powered by vancheer
        
               
            
        
        
        
        
        
        
            
        Contact address
        

            
            
        
                
        Shenzhen Headquarters：
        
                
        No.1006,10th Floor,Geya Building,Gongming Nanhuan Road,Guangming District,Shenzhen Guangdong Province, China
        
                
            
        
            
            
        
                
        Production base：
        
                
        Xihai industrial zone, jun'an cangmen village, shunde district, foshan city
        
                
            
        
            
        
        
        
        
        
        
            
            
        
                
        Copyright ?2019 深圳優(yōu)力可科技股份有限公司 All Rights Reserved  
        粵ICP備18099211號(hào)-1Powered by vancheer
        
                
            
        
        
        
    
        

        

        
    
        
        
        
            
        
        
        
        Back to top
        
    
        

        















    

猫咪av最新永久网址无码,国产又粗又长又爽又黄,国产剧情在线播放一区二区,国产人成视频在线观看
日韩一区二区三区久久综合
国产真实露脸3p视频观看


            

              

              

              



              


亚洲国产成人五月综合网|
日韩丝袜精品二区免费视频|
性色av免费观看|
亚洲日韩在线精品第一品|
久久AV无码精品人妻系列|
五月六月婷婷国产在线|
亚洲欧美日本A∨天堂|
加勒比中文无码久久综合色|
中文字幕日本熟女|
久久精品中文字幕免费|
亚洲国产欧美日韩另类精品一区二区在线|
有中文字幕的黄色网|
亚洲,日韩,国产 综合网|
伊人无码中文字幕|
亚洲无码综合图片|
在线不卡无码不卡视频|
一区二区三区四区视频在线|
国产AV午夜精品一区二区三区|
亚洲国产国语自产精品|
在线观看你懂的国产|
欧美与黑人午夜性猛交久久久|