Production: 500gsm antistatic  polyester needle punched felt Construction Needle Felt Fibre Composition Polyester+Conductive yam Scrim Composition Polyester Felt Area Weight 500g/m2 Thickness 1.7mm Mean Air Permeability 15(m3/m2/min@200pa) Breaking Strength-MD(warp) ≥1100 Breaking Strength-CMD(weft) ≥1500 Breaking Elongation(N/5cm)-MD (warp) ≤35 Breaking Elongation(N/5cm)-CMD (weft) ≤60 Dry shrinkage MD(130℃warp ) ≤1.5 Dry shrinkage CMD(130℃weft ) ≤1.0 Operating Temperatures ≤130 deg C Recommended Maximum Continuous 130 deg C Recommended Maximum Surge 150 deg C Finish Heat set/singed/calendered Bag style: round bag (steel belt style) flat bag, special-shaped bag, drawstring bag, Filter bag head with thick felt, bottom reinforcement, bag body with iron ring,etc. Scope of application: Cement plant, steel plant, waste power plant, asphalt mixing plant, thermal power plant, feed plant, Flour factory, rice factory, ceramics factory, bathroom factory, foundry,etc.