Advanced Upgrade
铱 磨制工具
Tilling Upgrade
Water Upgraded Nether..
Blank Chest Upgrade
空白升级模版
七级勇气之霎升级
Limiting Upgrade
Compressing Upgrade
升级Lv2
水下呼吸 Upgrade
EM Generator Upgrade
基础卡槽
高级燃料效率升级
机动升级 (WIP)
Engine Upgrade
绿宝石升级
冷冻升级
Biggest_Xuan
咸肝花生
QQ酱770740
QQ酱797658
南宫逸枫
卢壶口
PotatoMinecraft
Hleison
SchlossTraum
12121212
marquis
06333
crazydiantr
阿杜
QQ酱241730
horeaper
手持对要升级的MK3机器右键即可将机器升级到MK4等级。