Do = Di + 2b
Do = 封头外径
Di = 封头内径
CR = 球面半径
b = 边距宽度
SF = 无
DH = 封头深度
THi = 封头总内高
t = 壁厚
+86-510-83550183
+86-510-88570127
sales@dishendfab.com
+86-138-1208-2959
