碳钢弯头 Carbon Steel Elbow 不锈钢弯头 Stainless Steel Elbow 高压弯头 High-Pressure Elbow 同心异径管 Concentric Reducers 偏心异径管 Eccentric Reducers 高压异径管 High-pressure Reducers 不锈钢等径三通 Stainless Straight Tee 碳钢等径三通 Carbon Straight Tee 不锈钢等径四通 Stainless Straight Cross 高压三通 High-pressure Tee 锻制三通 Forged Tee 异径接头 Template 管帽 Caps 法兰flange 长径和短径弯头 long and short radius elbows 同心和偏心异径接头 concentric and eccentric reducers 等径和异径三通 straight and reducing outlet tees 大小头 CONCENTRIC REDUCER Tee Equal 相等的三通 等径三通　Straight Tee 异径三通　Reducing Tee 等径四通　Straight Cross