Highway guardrail roll forming machine

what is important for highway guardrail roll forming machine.  Why company sell 30000 USD, and others sell much higher. Do you think the quality is same?

Just compare the quality of punching system.  it is enough for finding difference.
stronger or not.

Or check the appearance before forming highway guardrail.

Above pictures are our highway guardrail roll forming machines. if you needed it, contact with me

Contact: Ted
Whatsapp/wechat: 008615031898708