Cheap electric single girder half-gantry crane

ç”µåŠ¨å•æ¢åŠé¾™é—¨èµ·é‡æœºæ˜¯ä¸€ç§æ²¿è½¨é“åž‚ç›´ç§»åŠ¨çš„éžæ ‡èµ·é‡è®¾å¤‡ã€‚å…¶ä¸­ï¼Œæ¡¥å¼èµ·é‡æœºæ°´å¹³ç§»åŠ¨ï¼Œèµ·é‡æœºåŠå…·ä¸Šä¸‹å‡é™ï¼Œé€‚ç”¨äºŽé“è·¯ï¼Œä»“åº“ï¼Œç å¤´ç­‰é“è·¯ä¼ä¸šè£…è½½è¿è¾“ç‰©æ–™ï¼Œä¹Ÿæ˜¯ç†æƒ³çš„æ¡¥å¼èµ·é‡æœºé«˜æž¶æ¡¥æå‡ç†æƒ³èµ·é‡è®¾å¤‡æœºæ¢°ã€‚

æ‘‡ç¯®çš„ç‰¹ç‚¹æ˜¯å‰åŽæ”¯æ’‘æ»šè½®ç©¿è¿‡å­”æ´žï¼Œä¸å—åº•åº§å¡åº¦å˜åŒ–å’Œåº•åº§é«˜ç¨‹å·®å¼‚çš„é™åˆ¶ï¼Œå‡å°‘äº†è·¯åŸºåŠ å·¥æ—¶é—´å’ŒåŠ³åŠ¨å¼ºåº¦ï¼Œé™ä½Žäº†åŽ‹åŠ›çš„è·¯é¢ï¼Œä»¥æé«˜å­”çš„å®‰å…¨æ€§ã€‚