Assalamu alaikum bhai Trax 250 crane ke baare me Jankari dene ke liye Shukriya bhai aapne usme O system nahi bataya Agar boom nikalne ka hai toh mo theory mein Jana Chahiye usse Tumhara Boom niklega uske baad motupa aana chahiye more to working model itna bhi Jankari aapne Diya thank you God bless you Allah Hafiz