Nominal Diameter	Outside Diameterat Bevel				End to End
	large end D		small end D1
	Ⅰ	Ⅱ	Ⅰ	Ⅱ
3/4x1/2	26.9	25	21.3	18	38
3/4x1/4	26.9	25	17.3	14	38
1x3/4	33.7	32	26.9	25	51
1x1/2	33.7	32	21.3	18	51
1.1/4x1	42.4	38	33.7	32	51
1.1/4x3/4	42.4	38	26.9	25	51
1.1/4x1/2	42.4	38	21.3	18	51
1.1/2x1.1/4	48.3	45	42.3	38	64
1.1/2x1	48.3	45	33.7	32	64
1.1/2x3/4	48.3	45	26.9	25	64
1.1/2x1/2	48.3	45	21.3	18	64
2/1.1/2	60.3	57	48.3	45	76
2/1.1/4	60.3	57	42.3	38	76
2/1	60.3	57	33.7	32	76
2/3/4	60.3	57	26.9	25	76
2.1/2x2	73	76	60.3	57	89
2.1/2x1.1/2	73	76	48.3	45	89
2.1/2x1.1/4	73	76	42.3	38	89
2.1/2x1	73	76	33.7	32	89
3x2.1/2	88.9	89	73	76	89
3x2	88.9	89	60.3	57	89
3x1.1/2	88.9	89	48.3	45	89
3x1.1/4	88.9	89	42.4	38	89
3.1/2x3	101.6		88.9		102
3.1/2x2.1/2	101.6		73		102
3.1/2x2	101.6		60.3		102
3.1/2x1.1/2	101.6		48.3		102
3.1/2x1.1/4	101.6		42.4		102
4x3.1/2	114.3		101.6		102
4x3	114.3	108	88.9	89	102
4x2.1/2	114.3	108	73	76	102
4x2	114.3	108	60.3	57	102
4x1.1/2	114.3	108	48.3	45	102
5x4	141.3	133	114.3	108	127
5x3.1/2	141.3		101.6		127
5x3	141.3	133	88.9	89	127
5x2.1/2	141.3	133	73	76	127
5x2	141.3	133	60.3	57	127
6x5	168.3	159	141.3	133	140
6x4	168.3	159	114.3	108	140
6x3.1/2	168.3		101.6		140
6x3	168.3	159	88.9	89	140
6x2.1/2	168.3	159	73	76	140
8x6	219.1	219	168.3	159	152
8x5	219.1	219	141.3	133	152
8x4	219.1	219	114.3	108	152
8x3.1/2	219.1		101.6		152
10x8	273	273	219.1	219	178
10x6	273	273	168.3	159	178
10x5	273	273	141.3	133	178
10x4	273	273	114.3	108	178
12x10	323.9	325	273	273	203
12x8	323.9	325	219.1	219	203
12x6	323.9	325	168.3	159	203
12x5	323.9	325	141.3	133	203
14x12	355.6	377	323.9	325	330
14x10	355.6	377	273	273	330
14x8	355.6	377	219.1	219	330
14x6	355.6	377	168.3	159	330
16x14	406.4	426	355.6	377	356
16x12	406.4	426	323.9	325	356
16x10	406.4	426	273	273	356
16x8	406.4	426	219.1	219	356
18x16	457	480	406.4	426	381
18x14	457	480	355.6	377	381
18x12	457	480	323.9	325	381
18x10	457	480	273	273	381
20x18	508	530	457	480	508
20x16	508	530	406.4	426	508
20x14	508	530	355.6	377	508
20x12	508	530	323.9	325	508

Factory

Testing Center

Our company's testing center has various experimental equipment, including Rockwell hardness testers,

metallographic microscopes, coordinate measuring machines, yield testing benches, bending testers,

tensile testers, high-density ultrasonic flaw detectors, light cutting microscopes, vertical optical meters,

and other professional equipment; The testing center currently has 15 professional testing personnel,

including 5 quality engineers and 2 quality chief engineers, all of whom have higher degrees.

HUNAN LIANGMING METAL MATERIAL CO.,LTD was founded in 2009,which is a professional manufacturer and exporter of scaffolding material,steel pipes and pipe fittings.Its headquarter located in Changsha city,Hunan province and production base located in Daqiuzhuang town,Jinghai District,Tianjin.

Our main products is scaffolding pipe, steel plank, coupler and ringlock system,We have 3 automatic production lines for steel plank ,3 automatic production lines for scaffolding pipe,5 automatic production lines for steel prop,and more than 80 pcs advanced equipment for cutting,drilling,welding,painting and package.Through the integration of the tow technology,our scaffolding took the lead in the realization of the whole pipeline operation mode,and part of the production equipment achieves intelligent.for now,our production capacity is about 200000 Tons,including steel prop,frame,scaffolding system,jack base,plank and other accessories.our products are exported to Asia,North America,Oceania and Europe.

Our scaffolding strictly implement the requirements of ISO 9001 quality management system,adhering to the implementation of quality strategy,leading the development of the industry "business philosophy,toprovide you withsatisfactory and reliable products. 

We always try our best to provide the best solution and the best service to our valuable clients efficiently.