... 3Non-toxic, environment-friendly 4ISO9001:2000,CE,ISO14001,OHSAS18000 Outdoor physical exercise equipment: 1,Metal: National standard steel pipe, welded by ... rag, no welding scar. The anti-electric-state powder painted to the metal was imported from Germany, which makes the color ... ,Usage: Residential zones, parks, education organizations etc. Outdoor Fitness Equipment(physical series)