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The early twentieth century, the Yu family in Jiangsu and Zhejiang provinces, engaged in traditional filter production, which was mainly supplied to the tofu manual workshops and sugar production workshops, etc.
2012 YEAR
Guangde Huilong Enviroment Technology Co,.Ltd Founded, HL filter Guangde factory in construction(100 acres)
2010 YEAR
Huilong Kunshan Factory opening
2009 YEAR
Four star Huilong Hotel foundation in Taizhou Zhejiang
2006 YEAR
Guangzhou AKF filter equipment Co,.Ltd founded
2003 YEAR
HL filter Suzhou ( Suzhou Huilong Purification Filter Co.,Ltd ) founded
1998 YEAR
HL filter Hongkong ( Huilong ( H.K ) INT’ Development Co.,Ltd ) founded
1996 YEAR
HL filter Shanghai company founded
1994 YEAR
HL filter Guangzhou ( Guangzhou Longhuilong Filter Co.,Ltd ) founded
1985 YEAR
Family owned workshop in Zhejiang
• Suzhou Huilong Purification Filter Co.,Ltd
• Add: Datang industrial Zone, Qiandeng 
Town, Kunshan City, Jiangsu, China.
• Tel: +86-20-82580895
• Fax: +86-20-82580859
• Email:
• Guangzhou Longhuilong Filter Co., Ltd
Guangzhou Huilong Filter Co.,Ltd
• Tel: +86-20-82580895
• Email:

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