The tests research of blasting vibration simulating earthquake were carried out by a reinforced concrete pipe embedded landscape orientation and hangfire.
To solve the problems of low quality, low efficiency and high cost of steel mesh reinforcement used in the mines, one kind of special spotwelder was developed.
In the steel bar, concrete, forest cold night, the bank flowers blossom on his coat, Muffetee, pin check shirt and pants, he need a subtle romance and warmth。