... Ball Joint HandrailsBall-joint rail have advantages such as attractive appearance,convenient installation,robustness,and good anti-corrosive property with ... kinds as 1000,1200,1500,2000mm.4.Steel tube's size:subject to the ... parties. 5. Form of Bend and Bottom Plate 6. Certificate 7.Guide for ordering1. ... drawing, sectional view and joint drawing. 3. In the case of stair treads, please specify its ...