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Humen Nance Jianmin Road. 1 - 20,Dongguan,Guangdong,China China
Most extension springs are wound with initial tension. This is an internal force that holds the coils together. The measure of the initial tension is
Spring washers General specifications for steel wire or steel wire, to support the role of the nut nut flat, uniform stress.
連絡先担当者 Mr. Jame TOM
住所 Humen Nance Jianmin Road. 1 - 20, Dongguan, Guangdong
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