螺絲產品介紹,六角螺絲,木牙螺絲,合金鋼內六角螺絲等

DIN 912 內六角孔螺絲 SOCKET CAP SCREW DIN 7991 皿頭內六角螺絲 FLAT HEAD SOCKET CAP SCREW ISO 7380 半圓頭內六角螺絲 BUTTON HEAD SOCKET CAP SCREW DIN916 內六角固定止付螺絲 SOCKET HEADLESS SET SCREW

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