Tumbol Phraeksa Mai, Amphoe Mueang Samut Prakarn, Samut Prakan 10280
prefabricated sump toilet tank formwork U-shaped gutter formwork (changeable type) hydraulic system, vibrating motor system, compacted marquee, sandstone barn, concrete slide barn concrete formwork Conveyor set electric and pneumatic control system with equipment imported from Europe Stone-Lime-Sand-Water