... .durable/flexible. 1.the materialc45,42crmo4,c602.the usagetransmission shaft,motor shaft,machinery shaft,ABB shaft,ACW shaft3.quality controlrun out ... 100 percent insepction4.net weight0.5-15kgs5.strenghthmatural CNC process,small order,competitve price6.charactersunstandard shaft,sloting shaft