precast concrete T Joist machine pres tress T beam, View t beam size, Ling-Feng Product Details from Ningjin County Shuangli Building Materials Equipment Co., Ltd. on Alibaba.com
precast concrete lintel making machine can produce 6 lintel one lane - YouTube
Pre-stressed precast concrete lintel|post|pillar/beams making machine - YouTube
Precast concrete lintel making machine with 4 lines at the same time
Concrete machine for reinforced lintels (egg-layer) - YouTube