According to different production methods, it can be divided into hot-rolled tubes, cold-rolled tubes, cold-drawn tubes, extruded tubes, etc. 1. Hot-rolled seamless pipes are generally produced on...
1、For the receiver which is not allowed to be inserted into the shell, its inner end should be trimmed to be flush with the inner surface of the shell and ground flat after welding. 2, the...
A coking and gas supply company has three 4.3m tamping side-loading coke ovens, which install a new desulfurization and denitrification plant. The coke oven flue gas is firstly treated with dry...