... MACHINERY GROUP. Experienced and professional. Responsible to our customers. Excavator Long Reach Boom:As a leading long reach boom manufacturer ... , deep foundation excavation, drainage construction, distant digging, etc. Applicable models: CATERPILLAR, KOMATSU, KOBELCO, HITACHI, KATO, SUMITOMO, etc. PC60, PC100, PC120 ... R220, R300, R350, R400. etc.Customer's request welcome Excavator Super Long Front