1ãå¢ä½åæ¢
æé æ±ä¸è½ç¨æ¹é¢è¿è¡ä»£æ¿ï¼å 为æ¹é¢ä¸æ¯
æ··ååè§èè§å®çææï¼ä¸è½éè¿éªæ¶ã
2ãå¨ç ä½æ¿å±å¢ä½çè§å®é¨ä½ï¼ææé é
çï¼å¹¶æå
ç å¢åæµçæ··ååæ±çæ½å·¥é¡ºåºå¶æçæ··ååæ±ï¼é常称为混ååæé æ±ï¼ç®ç§°æé æ±ï¼å»ºçå¾çº¸é符å·ä¸ºâGZï¼ã
3ãæ¹é¢:æ¯å®å¿çï¼æ£æãåºå«äºæ¹ç®¡ï¼ç©ºå¿çï¼å±äºç®¡æãé¢æï¼Steelï¼ï¼æ¯é¢éãé¢å¯æé¢æéè¿ååå å·¥å¶ææéè¦çåç§å½¢ç¶ã尺寸åæ§è½çææãé¢ææ¯å½å®¶å»ºè®¾åå®ç°
ååå¿
ä¸å¯å°çéè¦ç©èµï¼åºç¨å¹¿æ³ãåç§ç¹å¤ï¼æ ¹æ®æé¢å½¢ç¶çä¸åãé¢æä¸è¬å为åæãæ¿æã管æåéå±å¶åå大类ï¼ä¸ºäºä¾¿äºç»ç»é¢æçç产ã订货ä¾åºåæ好ç»è¥ç®¡çå·¥ä½ï¼åå为é轨ã轻轨ã大ååé¢ãä¸ååé¢ãå°ååé¢ãé¢æå·å¼¯åé¢ï¼ä¼è´¨åé¢ã线æãä¸åé¢æ¿ãèé¢æ¿ãçµå·¥ç¨ç¡
é¢çã带é¢ã
æ ç¼é¢ç®¡é¢æãçæ¥é¢ç®¡ãéå±å¶åçåç§ã