2. 

    <dd id="owiap"><nav id="owiap"><i id="owiap"></i></nav></dd>
  3. 

    
  
    
    
    
    Langfang Tianke Biotechnology
    
      Professional production base of general chemical reagent and pharmaceutical accessories
    
    
    
      
    Hotline:+86-15076659665
    
      
    
        
    
          
            
    
              
              
            
    
          
        
    
      
    
    
    
    
    
  
    

    


    
  
    
    
    Products
    
          
    Acetate
    Phosphate
    Sulfate
    Chloride
    Carbonate
    Disinfection and environmental protection
    Other products
      
    
  
    
    
    Disinfection and environmental protection
    
    
    
    
    
      
 

  
  
  
  
  
  
  

    
        
    
          
    		
        
    
      
    
     

    
    
    
  
    
  
    

    

    
  
    Home About UsProductsNewsJobsOrderContact Us中文
    

    

    
  
    
    
    
      

    
        WeChat
    
    
    
    
    
      
    
        
    Contact Us
    
      
    
      
    Langfang Tianke Biotechnology Co., Ltd.
    
        Add: Sanghang Industrial Park, Dacheng County, 
    Hebei, China
    
        Tel:+86-15076659665 Manager Ma
    
        Fax:+86-316-5569332?
    
        E-mail:ytty08@163.com
    
    
    
    
    
  
    

    

    Copyright (C) 2020,
Langfang Tianke Biotechnology Co., Ltd. All Rights Reserved.Supported   by ChemNet ChinaChemNet Toocle Copyright Notice
    
 



				
				
    
				
    
				 
    
				
				  
    
					
    	
    點擊這里給我發消息
    客服一
    點擊這里給我發消息
    客服二
    點擊這里給我發消息
    客服三
     
    
					
     
      
    
					
     
    
					
    
					
两个男人添我下面试看十分钟_学校调教羞耻嗯啊play_人妻在厨房被色诱 中文字幕_最近中文字幕2018免费版

    1. 

    2. 

      <dd id="owiap"><nav id="owiap"><i id="owiap"></i></nav></dd>
    3. 
free hd xxxx movies video|
下载可以看免费视频的软件|
97资源|
亚洲国产成人精品福利在线观看|
欧美xxxx做受性欧美88|
嘿嘿视频|
老头老太做爰xxxx|
日本无码sm凌虐强制m字开腿|
亚洲国产成人无码av在线播放|