• U skru jẹ rọrun lati fi sori ẹrọ, agbara giga ati didara idaniloju • Ohun elo: Irin-gbona fibọ galvanized
• Awọn cotter pin ni alagbara, irin, awọn miiran apa shot-fibọ galvanized, irin. • Lo: Ṣe atunṣe agbelebu lori ọpa kan ni ila ati ni afẹfẹ.
Didara Lakọkọ, Idaniloju Aabo