The chain wheel is meshed with the roller chains.
所述链轮与滚子链条啮合。
English Name: roller chains - European type - Part 1: Simple -, double -, triple roller chains.
简体中文标题：滚子链。欧洲式。第1部分：单节、双节和三节滚子链(英文版)。
Frame is sectional steel design with two lateral safety grids. Supporting angles are fixed on bush roller chains.
采用型钢焊接的框架结构，两侧有安全护网，带支撑挂耳固定在链条上。
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