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緊固件中金屬緊固件經(jīng)常會(huì )因為各種原因發(fā)生銹蝕,在發(fā)生銹蝕時(shí)一些緊固件會(huì )出現完全鎖死的問(wèn)題,導致緊固件本身的操作失去效能,也就是無(wú)法拆卸或繼續鎖上緊固件。緊固件的···
Guangzhou Dawson composite materials co., LTD
Phone:086-020-87218127、Fax:020-87236011
Email:fh@chinadaosen.com
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