1)factory pipe bend,预制弯头2)steel elbow,钢制弯头3)Angle head manufacturing,弯头制作4)construction bend,现制弯头5)mechanical elbow,机制弯头6)fabricated pipe bend,预制弯管
用法例句
The article introduces a simplified method to calculate the steel elbows of prestressed reinforced concrete pipe, which sets a new path to calculating the structural dimension of non--standard nook steel elbows.