A20-S Brass
Patent Certificate No. 专利号 : ZL 2012 2 0538591.4
Spring return in case of power is failure ( which is optional according to requirements)
Name: Zhou Jian
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Tel: 86-576-84297288 81100233
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Email: tonhe@139.com
Address: Add:No.3 building, Xinshun SME pioneer park, Jiangkou street, Huangyan, Taizhou city, 31 8020, Zhejiang, China
Patent Certificate No. 专利号 : ZL 2012 2 0538591.4
Spring return in case of power is failure ( which is optional according to requirements)