Profile: Assembly Supplies, Co. provides extruders, grooving machines and hand held tools. Our grooving machine is used in welding plastic waterproof roof sheeting, earthworks or tunnel engineering, in process equipment manufacture, for processing tarpaulins, and for floor coverings or vehicle repairs. It is provided with vent and dust bag attachments. 300F tensionmeter is ideal for measurements directly on the construction site. It has a digital display of elongation, peak force, tear force, test speed and position.