Method for manufacturing concrete revetment part-elements (21, 22), the method comprising of: - placing a concrete arranging unit above a mould resting on a flat support element and provided with one or more continuous openings; - arranging concrete material in the one or more continuous openings; - placing at least one press on the concrete material in the at least one continuous opening, wherein the press comprises two first press parts (11, 12) for forming respective relatively deep portions (30,31) and a second press part between the two first press parts (11, 12) for forming a relatively shallow portion of the part-element (21,22); - pressing the press downward into the opening for the purpose of causing lateral displacement (P 3,P 4) of concrete material from positions under the second press part to positions under both first press parts (11,12); - removing the thus resulting revetment part-element (21, 22) from the mould, wherein a continuous opening defines a form with an upper mould part and a lower mould part, wherein pressing of the press into the continuous opening comprises of pressing the press downward through the upper mould part until a lower edge of the second press part has reached the lower mould part, and wherein the press has a substantially hollow form, such that when the lower edge has reached the lower mould part the depth (d 1,d 3) at the position of a shallow portion (29,31) is more 50% or even more than 60% smaller than the depth (d 2) at the position of a deep portion, further comprising of displacing concrete material in lateral direction (P 3,P 4) over a distance of at least 20%, at least 30% or even at least 40% of the length of the opening during displacing of the press until the lower mould part is reached; wherein the mould is provided with at least a first pair of rows of continuous openings, the method further comprising: - simultaneously manufacturing at least one pair of rows of revetment part-elements; - tilting revetment part-elements of the first row and revetment part-elements of the second row; - placing tilted revetment part-elements from the first row and from the second row with their flat sides against each other for the purpose of forming respective revetment elements. - placing a concrete arranging unit above a mould resting on a flat support element and provided with one or more continuous openings; - arranging concrete material in the one or more continuous openings; - placing at least one press on the concrete material in the at least one continuous opening, wherein the press comprises two first press parts (11, 12) for forming respective relatively deep portions (30,31) and a second press part between the two first press parts (11, 12) for forming a relatively shallow portion of the part-element (21,22); - pressing the press downward into the opening for the purpose of causing lateral displacement (P 3,P 4) of concrete material from positions under the second press part to positions under both first press parts (11,12); - removing the thus resulting revetment part-element (21, 22) from the mould, wherein a continuous opening defines a form with an upper mould part and a lower mould part, wherein pressing of the press into the continuous opening comprises of pressing the press downward through the upper mould part until a lower edge of the second press part has reached the lower mould part, and wherein the press has a substantially hollow form, such that when the lower edge has reached the lower mould part the depth (d 1,d 3) at the position of a shallow portion (29,31) is more 50% or even more than 60% smaller than the depth (d 2) at the position of a deep portion, further comprising of displacing concrete material in lateral direction (P 3,P 4) over a distance of at least 20%, at least 30% or even at least 40% of the length of the opening during displacing of the press until the lower mould part is reached; wherein the mould is provided with at least a first pair of rows of continuous openings, - removing the thus resulting revetment part-element (21, 22) from the mould, wherein a continuous opening defines a form with an upper mould part and a lower mould part, wherein pressing of the press into the continuous opening comprises of pressing the press downward through the upper mould part until a lower edge of the second press part has reached the lower mould part, and wherein the press has a substantially hollow form, such that when the lower edge has reached the lower mould part the depth (d 1,d 3) at the position of a shallow portion (29,31) is more 50% or even more than 60% smaller than the depth (d 2) at the position of a deep portion, further comprising of displacing concrete material in lateral direction (P 3,P 4) over a distance of at least 20%, at least 30% or even at least 40% of the length of the opening during displacing of the press until the lower mould part is reached; wherein the mould is provided with at least a first pair of rows of continuous openings, - simultaneously manufacturing at least one pair of rows of revetment part-elements; - tilting revetment part-elements of the first row and revetment part-elements of the second row; - placing tilted revetment part-elements from the first row and from the second row with their flat sides against each other for the purpose of forming respective revetment elements.