Derrick boom headfittings - fixed type 起重機(jī)吊桿的頂部配件.固定型
A brief analysis of the mechanical property of the fixed type tower crane ' s foundation 淺析固定式塔式起重機(jī)基礎(chǔ)的力學(xué)性能
Shipbiulding ; derrick head fittings , fixed type ; identical with iso 8148 , edition 1985 造船.固定吊桿眼板.與iso 8148 1985版本等同
Fixed type bar 固定印字桿
It can be designed into a fixed system of withdrawable type and fixed type according to different requirements 依據(jù)不同需要可設(shè)計(jì)成抽屜式和固定式混合系統(tǒng)。