galvanized road block barriers ISO 9001 installation and remove:easy and quilk normal ... :Normal Size SpecificationsPanel size2.1x1.1mFrame 20mm,25mm,32mm,40mm,42mm,48mm Infill picket14mm,16mm,20mm,25mmBar spacing60mm,100mm,190mm,200mmtreatmentHot-dipped ... -7538203address:Lige Village, Anping county, Hebei province, China galvanized road block barriers(munufacturer of china)