Number

Customer unit

Name

Year

1

Shanxian Zhongtian Gas Co., Ltd.

3PE reinforced anti-corrosion straight seam steel pipe

2020

2

Anqiu PetroChina Kunlun Gas Co., Ltd.

3PE reinforced anti-corrosion spiral steel pipe

2020

3

Hebei Natural Gas Co., Ltd.

Double-layer weather-resistant coated seamless steel pipe

2020

4

Baiyin Hongyu Gas Co., Ltd.

3PE reinforced anti-corrosion straight seam submerged arc welded steel pipe

2020

5

Shanxi Comprehensive Reform Demonstration Zone Gas Co., Ltd.

3PE reinforced anti-corrosion spiral seam submerged arc welded steel pipe

2020

6

Tangshan Natural Gas Co., Ltd.

FBE anti-corrosion seamless steel pipe

2020

7

Changzhou Xinao Gas Co., Ltd.

3PE reinforced anti-corrosion straight seam steel pipe

2020

8

Yantai ENN Clean Energy Co., Ltd.

Double-layer weather-resistant coated seamless steel pipe

2021

9

Hubei Sanning Chemical Co., Ltd.

3PE reinforced anti-corrosion straight seam submerged arc welded steel pipe

2021

10

Jilin Songyuan Petrochemical Co., Ltd.

3PE reinforced anti-corrosion seamless steel pipe

2021

11

Hebei Natural Gas Co., Ltd.

Double-layer weather-resistant coated seamless steel pipe

2021

12

Quanzhou Gas Co., Ltd.

3PE reinforced anti-corrosion straight seam submerged arc welded steel pipe

2021

13

Laiwu Jinhong Pipeline Natural Gas Co., Ltd.

3PE reinforced anti-corrosion seamless steel pipe

2021

14

Etuoke Banner Jianyuan Coal Chemical Technology Co., Ltd.

3PE reinforced anti-corrosion straight seam submerged arc welded steel pipe

2021

15

Yantai ENN Clean Energy Co., Ltd.

3PE reinforced anti-corrosion seamless steel pipe

2022

16

Yantai ENN Clean Energy Co., Ltd.

Double-layer weather-resistant coated seamless steel pipe

2022

17

New World Energy Engineering Technology Co., Ltd.

3PE reinforced anti-corrosion straight seam submerged arc welded steel pipe

2022

18

Hebei Natural Gas Co., Ltd.

Double-layer weather-resistant coated seamless steel pipe

2022

19

Jiangxi Guofa Natural Gas Development Co., Ltd.

3PE reinforced anti-corrosion seamless steel pipe

2022

20

Liaocheng Jinao Gas Development Co., Ltd.

3PE reinforced anti-corrosion seamless steel pipe

2022

twenty one

Xiangcheng Natural Gas Co., Ltd.

3PE reinforced anti-corrosion seamless steel pipe

2022

twenty two

Hebei Natural Gas Co., Ltd.

Double-layer weather-resistant coated seamless steel pipe

2023

twenty three

Yantai ENN Clean Energy Co., Ltd.

3PE reinforced anti-corrosion seamless steel pipe

2023

twenty four

Quanzhou Gas Co., Ltd.

3PE reinforced anti-corrosion straight seam steel pipe

2023

25

Xinghua Xinao Gas Co., Ltd.

3PE reinforced anti-corrosion straight seam submerged arc welded steel pipe

2023

26

Yinchuan PetroChina Jingcheng Gas Co., Ltd.

3PE reinforced anti-corrosion seamless steel pipe

2024

27

Yantai ENN Clean Energy Co., Ltd.

3PE reinforced anti-corrosion seamless steel pipe

2024

28

A wholly owned subsidiary of Yuhuan Water Group Co., Ltd.

3PE reinforced anti-corrosion spiral seam submerged arc welded steel pipe

2024

29

Hebei Natural Gas Co., Ltd.

Double-layer weather-resistant coated seamless steel pipe

2024