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What are the specifications of glass tubes for solar water heaters?

National supervision and random inspection of all-glass vacuum solar collector product quality and list of some products with good quality and their companies

Serial number, company name, trademark, model, production date

1 Huangming Solar Energy Group Co., Ltd. Huangming φ58×2100 2007-12-12

φ58×1800 2008-03-26

2 Jiangsu Huayang Solar Energy Co., Ltd. Huayang φ58× 1800mm 2008-03-17

φ47×1500mm 2008-01-20

3 Langfang Creative Bo Energy Co., Ltd. CIBφ58×1800 2008-03-10

4 Zhejiang Meida Solar Energy Industry Co., Ltd. Meida QB-AL-N/AL-47/58-1800-1 2008-03

5 Beijing Tsinghua Sunshine Energy Development Co., Ltd. Shale QB-Al- N/Al-47/58-1800-Z 2008-03-14

QB-Al-N/Al-37/47-1500 2008-01-05

6 Hefei Meiling Solar Technology Co., Ltd. Meiling φ58×1800mm 2008-03-18

7 Shandong Linuo New Materials Co., Ltd. Linuo φ47×1500 2008-03-20

φ58×1800 2008-02-01

8 Jiangsu Guangguang Group Co., Ltd. Guangguang φ58×1800mm 2008-01-16

9 Tengzhou Guangpu Solar Energy Engineering Co., Ltd. Gold Diamond φ58×1800 2008- 03

10 Jiangsu Sangxia Solar Energy Industry Co., Ltd. Sangxia QB-58-1800 2008