Stainless steel countertop, the effective area of the upper countertop is not less than 140mm x 140mm, the effective area of the lower countertop is not less than 160mm x 160mm, and the thickness is not less than 1mm; The lifting range is 85mm~235mm, continuously adjustable; The flatness error of the upper and lower tabletops should be ≤ 2mm, and the parallelism error at any position during the lifting process should be ≤ 3mm; Rated load capacity ≥ 10kg