bw pipe fitting flange 1.Size:4'' * 150lbs 2.Material: A105 3.Standard:ANSI B16.5 bw pipe fitting flangesize 1/ ... Health & Safety Mangement System Certificate, acquired the license for manufacturing special pressure Pipline equipments from AQSIQ , passed the ... Market.packingin wooded cases or pallets,or as for clients'requirements applicationPetroleum,chemical,machinery,electric power,shipbuilding, ...