76,814 sets of DT III2 fastening systems and 14,852 sets of Compression damping fastening systems to the Ningbo Rail Transit Line 7 project

The Ningbo Rail Transit Line 7 project starts from Yunlong Station and ends at Yufan Road Station. The length of Ningbo Rail Transit Line 7 is about 39.469km. It has 25 stations and 1 intermediate air shaft, including 11 transfer stations. There is a section of Line 7 along the entire line. One field, respectively, is the Xiayingnan depot and the Lianqun parking lot.
In 2023, Anyang Railway Equipment Co., Ltd.(AT) provided 76,814 sets of DT III2 fastening systems and 14,852 sets of Compression damping fastening systems to the Ningbo Rail Transit Line 7 project.
 

No.	Product	Specification	Material	Drawing	Unit	Qty	Unit weight(kg)/Volume(cm3)	Remark
1	Iron tie plate	333*180mm	QT450-10	Urban rail 127-03	Pcs	76814	7.88kg	DT III2 fastening system
2	Rail clip	Type-B	60Si2Mn	TB/T 1495.4-92	Pcs	153628	0.449kg	DT III2 fastening system
3	Screw spike	T30*155mm	45#	DTB-13	Pcs	153628	0.961kg	DT III2 fastening system
4	Heavy spring washer	30	60Si2Mn	GB7244-87	Pcs	153628	0.082kg	DT III2 fastening system
5	T -head bolt	L=100mm	Q235-A	DTB-01	Pcs	153628	0.294kg	DT III2 fastening system
6	Nut	M22	Q235-A	DTB-02	Pcs	153628	0.15kg	DT III2 fastening system
7	Flat washer	22	Q235-A	DTB-03	Pcs	153628	0.073kg	DT III2 fastening system
8	Rail clip	Type B	60Si2Mn	TB/T 1495.5	Pcs	29704	0.449kg	Compression damping fastening system
9	Anchor bolt	Type I	8.8 grade		Pcs	29704	1.15kg	Compression damping fastening system
10	Anchor bolt	Type II	8.8 grade		Pcs		1.24kg	Compression damping fastening system
11	Heavy spring washer	30	60Si2Mn	GB 7244	Pcs	29704	0.082kg	Compression damping fastening system
12	Flat washer	22	Q235A	DTB-03	Pcs	29704	0.073kg	Compression damping fastening system
13	T -head bolt		5.6  grade	DTB-01	Pcs	29704	0.294kg	Compression damping fastening system
14	Nut	22	5 grade	DTB-02	Pcs	29704	0.15kg	Compression damping fastening system