A method of manufacturing a material strand (100), particularly for sealing, trimming or fastening of doors (11) or windows (12) of a motor vehicle (10), comprises the steps of: a) extrusion of an extruded strand (200); b) testing the extruded strand (200) after the extrusion, thereby identifying first segments (210) comprising manufacturing defects (211) and second segments (220) being free from manufacturing detects; c) cutting out the first segments (210) from the extruded strand (200), thereby causing faces (222) at the second segments (220); d) joining cut faces (222) of second segments (220) to obtain a joint (102) and to form a material strand (100), the joint (102) having a position within the material strand (100), wherein a minimum distance (d) is maintained between the positions of adjacent joints (102); e) identifying the position of each joint (102); and f) forming a transport unit (110) having a predetermined maximum length by winding the material strand (100).

An embodiment end cover member for an outbelt of a vehicle door includes a cover part configured to cover a portion where an end of the outbelt and an end of a glass run abut each other, an upper body positioned on an upper end of a panel mounted with a window glass, a lower body positioned below the upper body, the lower body including a locking hook locked and fixed to the panel, wherein the upper body and the locking hook vertically grip the panel to be fixed to the panel, and a connection part connecting the upper body to the lower body.