1.it has a U-pin style locking mechansim for safe 2.strong jack stand height control. 3.all joints are fully welded

  

Item No.	Capacity	Min.H	Max.H	N.W.
	t	mm	mm	kg
ZHJS-2T-1	2	275	425	5.5
ZHJS-3T-1	3	295	425	7.5
ZHJS-6T-1	6	400	610	14.5

1.it has a U-pin style locking mechansim for safe2.strong jack stand height control.3.all joints are fully welded for added strength.

4.packing:in carton then on pallets

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Jack Stand