1.it is with excellent quality,competitive price and excellent after sale service. 2.after ISO9001, TTMA.AAR specification.

3-Axles Suspension Specifications

1.

Size	Height of Rear Middle Hanger	100	130	150	180	210	240	270	300
	Height of Rear Middle Hanger	110	140	160	190	220	250	280	310
A		380	410	430	460	490	520	550	580
B		370	400	420	450	480	510	540	570
C		158	188	208	238	268	298	328	358
D		356	386	406	436	466	496	526	556
E		346	376	396	426	456	486	516	546
F		336	366	386	416	446	476	506	536
G		360	390	410	440	470	500	530	560

2.

TFOC Mechanical Suspension	Suspension(standard)	Spring Width:90/100/120
		Equalizer Pin:50/60/75