All non-check fixture AL details surface should be painted medium blue and steel details surface should be treated for rust prevention.
所有非检测用铝件表面应漆成适中的蓝色。 易生锈的钢制零件应进行表面防锈处理。
2
Gaolan No. 2 seedlings showed slightly lower growth rate but lower natural incidence by black spot and leaf rust than that of Wuqi Non and Xining No 5 seedlings.
皋兰2号种苗次之，但皋兰2号种苗对黑斑病和叶锈病的自然发病率又低于吴旗11号和西宁5号种苗。
3
With good flexibility and dust removal, high efficiency and long working life time. Mainly used for polishing the surface of metal, non-metal, removing rust and burr etc.