Basic identification color, identification symbol and safety mark of industrial pipeline GB7231-2003
Slurry long distance pipeline engineering design code CECS98:98
Industrial metal pipeline engineering construction and acceptance specification GB50235-97
Industrial equipment and pipeline insulation engineering design specification GB50264-97
Common terminology for pipeline engineering structures CECS83:96
Technical specification for anti-corrosion engineering of xylene-type unsaturated polyester resin CECS73:95
Gas pipeline engineering design specification GB50251-94
Oil pipeline engineering design specification GB50253-94
Industrial metal pipeline engineering quality inspection and evaluation standard GB50184-93
Industrial equipment and pipeline insulation engineering quality inspection and evaluation standard GB50185-93
Concrete conveying pipe type and size JJ83-91
Buried oil and gas pipeline structure design specification CECS15:90
Industrial equipment and pipeline insulation engineering construction and acceptance specifications GBJ126-89
Technical specification for furan resin anti-corrosion engineering CECS01:88
Construction and installation engineering quality inspection and evaluation standard industrial pipeline installation engineering TJ307-77
Cement Additive,superplasticizer for cement,cement plasticizer retarder,acrylic polymer cement additive,waterproof cement additive
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