Ball-joint handrail: 1.Factory for the post 2.Customized, with or ... 4.Durable,aesthetic outlook,ISO Galvanized Ball-joint handrail:1.Usage: used in water factory,dirty water treatment factory ... tread plate HL1-001 1 1/4" Φ65 1" 3/4" with HL1-002 without HL2-001 1 1/2" Φ76 1 1/4" 1" with HL2-002 ... without 3.Height serials (1)Standard H=1015(ball ...