Three beam four column structure, designed by computer optimized, simple, economical, and practical. 3 beam 4 column structure, designed by computer optimized, simple, economical, and practical. 3 beam 4 column structure, designed by computer optimized, simple, economical, and practical. Hydraulic control system adopts plug-in valve integrated system, operation reliable, service life long, hydraulic impact small, reducing connecting pipeline and leakage points. Hydraulic control system adopts plug-in valve integrated system, operation reliable, service life long, hydraulic impact small, reducing connecting pipeline and leakage points. Hydraulic control system adopts plug-in valve integrated system, operation reliable Power control system ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan Luɔ̈ɔ̈i de button centralized control, set adjustment (click motion), single time (semi-automatic) two operating modes. A lëu bï rot looi, a lëu bï rot looi, a lëu bï rot looi, a lëu bï rot looi, a lëu bï rot looi, a lëu bï rot looi. Tɛ̈ɛ̈r de luɔɔi, tɛ̈ɛ̈r de luɔɔi lëu bɛ̈n waar në tɛ̈ɛ̈r de luɔɔi de luɔɔi de luɔɔi.