... SINGLE-HANDLE WATERTIGHT DOOR 供应单把手水密门 Single-arm rack door 单臂架门机 SINGLE-HANDLE STEEL WATERTIGHT DOOR 供应钢质单把手水密门 ...
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门座式起重机分单臂架和四连杆两种类型，起重机的起升、变幅、回转和行走四大机构均采用交流变频调速，整机采用PLC控制，使用性能优越。
Portal crane sub frame and four-link arm two types, from the crane hoisting, luffing, slewing and walking four agencies ac frequency control, the machine USES PLC control, superior performance.
单臂架门座式起重机结构简单、起重量大自重轻。
Simple arm frame gantry crane structure, lifting large light weight.
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