Items: 1. welding neck, 2.slip on, screwed, 3.socket welding, 4.lap joint, blind Dimension "ANSI B 16.5/API 605/MSS SP-44/JIS DIN 2631/2632/2633/2634/2635/2636/2637/2638... Material: ASTM A105/ASTM A182 F304/F304L/F316/F316L Size:1/2"~60" Pressure Rate : 1.Class 150/300/600/900/1500/2500 LB 2.PN 6/10/16/25/40/64/100/160/250 3.JIS 5/10 KG" For more detail,please contact us. Competitive Advantages Well and High Quality Control , Prompt Delivery , Competitive Prices.