Material: Copper Technics:Forged Type:Coupling Place of Origin:Shanghai China (Mainland) Model Number:OEM Brand Name: OEM Shape:Equal Head Code:round Name:Hydro Formed Seamless Expansion Copper Bellows Size:various sizes are vailable Certificate:ISO9001:2008 Application:transducer, valve The max temperature:250℃ Wall thickness:0.03-0.12mm MOQ:1000PCS Trade term :FOB,CIF Payment term : T/T,L/C,Paypal N.W:0.1 KG