We are featured in producing saw pipes, oil pipes, ... flange,tube etc...1. Butt weld Elbow 45degree & 90degree Long Radius &Short Radius2. Butt weld Straight Tees & Reducing ... , threaded, lap joint, blind, spectacle, orifice, ring and long welding neck flanges.SIZE: 1/2 inch-72 inchWALL THICKNESS ... of interest to you,please let us know,We will be happy to give you details. long welding neck flange sizes