... : FM/UL/CE 2)Material: ASTM A536 3)Finish: Paint,Epoxy Powder,Darcromet 4)Size: 2x1"--8x4" 5)Color: RAL3000UL/FM Mechanical ... Tee Grooved Features:1)Finish:Paint,Epoxy Powder,Darcromet2)Size:2*1ΒΌ"--8x4"3)Thread: NPT/BSP/BSPT4 ... ,etc2)Industrial pipeline system on shipping ,mine, oil field,textile,powder plant,etc.3)Pipeline system on subway station ,railway station ...