>自己注冊上下分 24h在線客服! " />

日韩欧美亚洲综合久久影院_杂交乱系列小说合集txt_新婚少妇交换杨雨婷_少妇私密推油呻吟口吐白沫

NEXT
PREV
 
News
Location:Home > company news
Rubber extruder screw and barrel materials and processes
Author:admin  From:the Internet  Time:2015-3-8 8:38:00  Click:3956
Materials and processes
  
   Quality 38CrMoAL
  
   Quality duplex stainless steel
  
   Quality powder metallurgy materials
  
   Cold, hard metal thermal spray process diagram
  
   Advanced nitriding process
  
   Corrosion, wear double metal spraying
 

All rights:Zhoushan City Weida Machinery Co.,Ltd. Add:No.2 Road Dinghai District Jintang Town,Jinshan Industrial District,Zhoushan City 浙ICP備13024562號 Technical support:93BAIDU