中文版 ENGLISH Home About Us Products Show Plant Employment concept Contact us Message Board Carriage Bolt Flange Bolt Nut Non-standard bolts Hexagon Bolt Our company is a specialized manufacturer producing standard fastening parts. We have abundant resources and advanced processing technology for testing. Our products are hexagon head screws ranged from M5-M20 and mushroom head square neck bolts. Products f.................[Detailed] ========News site======== 中国新闻网 中华网 搜狐新闻 网易新闻 新浪新闻 中国县域经济网 5 4 3 2 Home | About Us | Products Show | Plant | Employment concept | Contact us | Message Board Copyright(c) www.tongchenghw.com Allright Reserved. Technical support HaiYan ChuangYi Software Technology Co.,Ltd. 浙ICP备10201378号-1