Not known Details About jual steel grating surabaya
Biasanya, angkur jenis ini dipasang langsung ketika proses pengecoran beton masih berlangsung, atau saat beton masih dalam kondisi basah dan belum mengeras/kering.The driving Electrical power is normally furnished by firing a combustible propellant in powder kind.[14] The fastener's insertion provokes the plastic deformation of the base material wh