JT交通运输标准 JT/T 4402.14-93 船体修理技术要求舱壁和围壁的换新及拆装 JT/T 4402.14-93 Technical requirements for hull repairing Roncwal or dismantling and reffitting of b... 03月02日JT/T 4402.14 阅读全文