Ö÷ÒªÄÚÈÝ£º1. DESCRIPTION¸ÅÊö
1.1 Thisstructuralpipesrollingprocedureconsistsoftheprocessofrollingplatestopipesandtheprocessofpipesplicing.
±¾½á¹¹¸Ö¹Ü¾íÖÆ³ÌÐò°üÀ¨°å²Ä¾í¹Ü¼°¹Ü²Ä½Ó³¤³ÌÐò¡£
1.2 Thisproceduredescribesindetailtheoverallfabri...
ÉÏ ´« Õߣºsunzry
ÏÂÔØ´ÎÊý£º1
ÉÏ´«Ê±¼ä£º2010-03-31 07:12:42