The structural feature and working process of the bending flaring die for conductpipe was introduced.
介绍了导管弯曲扩口模的结构特点及模具工作过程。
2
Seamless steel pipe, senior experts have pointed out that iron ore import qualified awarded can be used to conduct open and transparent manner, such as auction.
资深无缝钢管专家指出,铁矿石进口资质的颁发可用公开透明的方式进行,比如竞拍。
3
The transverse joints of Laxiwa arch dam use JBJ-60 one-way grouting device to conduct the repeated grouting in the original plastic pipe.