分秒必珍,不愧是國家未來的棟樑!
ISO 898-1:2013 - Mechanical properties of fasteners made of carbon steel and alloy steel -- Part 1: 分秒必珍,不愧是國家未來的棟樑! 創意來自於生活,用愉悅的心情去看待,體會其中奧妙,一起分享生活上的【無限創意】吧!.... ISO 898-1:2013 specifies mechanical and physical properties of bolts, screws and studs made of carbon steel and alloy steel when tested at an ambient temperature range of 10 C to 35 C. Fasteners (the term used when bolts, screws and studs are considered a...
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