SSize range:     DN 10-4000mm*
Standard:         ASTM/ASME/ANSI B16.5 and B 16.47,JIS/KS
                       (5K,10K,16K,20k),DIN2633,DIN2634,DIN2635,
                       BS STD 3293.
Material:           A105,A182,A234,A269,A321 A350, A403,A420,
                       321,304,304L,316, 316L,WPS,WPB,ST37,ST54.
Preesure range: 150 lbs - 2500lbs,PN 1-PN64,0.6Mpa-32Mpa.