... . 4.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