LF cone is well forged and with nice smooth surface. Thicker material can provide strong load-bearing capacity.
LF sleeve is electro-galvanized with smooth surface and nice look.LF sleeve section is bigger which has better load-bearing capacity.
HIGH STRENGTH BOLT
LF bolt is electro galvanized which has better corrossion resistance.LF bolt head is bigger which is with load-bearing capacity.
LF ball is with nice roundness and made of round steel rather than square steel(If they are made of square steel, they would have inner cracks). The holes are well treated before paint in order for smooth assembly.