航海史

• I have thoroughly solved the compass leaking bubble technical issues . from shanwei city industrial development co . , ltd . - how to develop woodroffe latest " - - automatic liquid bubble row compass . " fundamentally resolve of the international maritime history have blisters compass leakage problems
  我公司彻底解决了罗盘漏水产生气泡的技术难题,由汕尾市城区展辉实业发展有限公司总经理何展辉先生最新研制的“自动冲液排气泡罗盘” ，从根本上解决了国际航海史上罗盘漏气产生水泡的难题。