Hot sale 20-50 Ton Excavator 12-16m Two-section Telescopic Boom for Deep Digging Projections
Productomschrijving
Q1: What is a two‑section telescopic arm? A: Also known as a 2‑stage hydraulic sliding telescopic arm, it mainly consists of a fixed section, a sliding section and a telescopic hydraulic cylinder. Driven by the hydraulic cylinder, it can adjust working length and digging depth freely. It is widely used in deep‑pit excavation, river dredging, foundation construction and pond cleaning. Q2: What materials are used for the two‑section telescopic arm? A: The main boom tube uses