Awọn ohun elo akọkọ mẹta wa fun ite 12.9 bolts (12.9 wedge oran, 12.9 nipasẹ boluti): erogba, irin gbe oran, irin alagbara, irin gbe oran, ati Ejò.(1) Erogba irin (gẹgẹ bi awọn erogba, irin Wedge Anchor Bolts).A ṣe iyatọ irin kekere erogba, irin erogba alabọde, irin erogba giga ati ...
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