... are offered. 4.Certificate:ANSI,ASME,DIN,JIS,API pipe reducing tee size:1/2"~80" material:SS ... and alloy certificate:ANSI,ASME,DIN,JIS,API packing: plywood pipe reducing tee /carbon steel hybrid tee ... requirementApplications range petroleum, smelting, foodstuff, power, papermaking, chemical, medical equipment, aviation, boiler heat, exchanger, gas metallurgy, shipbuilding, construction, ...