... weight: about 22,000kg This changeable purlin machine can produce 2 profile in one machine, and the ... machine can auto change the profile and specifications, and there are screen showing ... can control the profile, specification, length, punching cutting, and roll forming. JCZ-350 changeable purlin machine consists of ... http://jgrollformingmachine.com/ JCZ-350 c/z changeable purlin machine`