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HG/T 20645.3-1998 Regulations on Professional Technical Management of Pipeline Machinery in Chemical Plants
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HG/T 20645.3-1998 Regulations on Professional Technical Management of Pipeline Machinery for Chemical Plants HG/T20645.3-1998 Stan
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20645.2-1998 Chemical plant piping mechanical design engineering regulations
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HG/T 20645.2-1998 Chemical Plant Pipeline Mechanical Design Engineering Regulations HG/T20645.2-1998 Standard download decompressi
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20645.1-1998 Chemical plant piping mechanical design content and depth regulations
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HG/T 20645.1-1998 Chemical plant piping mechanical design content and depth regulations HG/T20645.1-1998 standard download decompr
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20644-1998 Variable force spring support and hanger
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The displacement range of the variable force spring hanger is 30, 60, 90, 120, 150, 180mm; the load range is 154~217381N. The ambi
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20643-1998 Chemical Equipment Foundation Design Regulations
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This regulation applies to the design of various common equipment foundations in chemical, petrochemical and related devices, excl
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20642-1998 Technical regulations for design of refractory fiber linings for chemical industrial furnaces
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HG/T 20642-1998 Technical Specification for Design of Refractory Fiber Lining for Chemical Industrial Furnaces HG/T20642-1998 Stan
2024-10-04 category：Chemical industry standards (HG)+ View
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HG 2958.1-1988 Determination of strontium and calcium content in celestite ore EDTA volumetric method
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HG 2958.1-1988 Determination of strontium and calcium content in celestite ore EDTA volumetric method HG2958.1-1988 standard downl
2024-10-04 category：Chemical industry standards (HG)+ View
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HG 2957.11-1984 Determination of titanium content in alum ore - Diantipyryl methane photometric method
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HG 2957.11-1984 Determination of titanium content in alumite ore Diantipyryl methane photometric method HG2957.11-1984 standard do
2024-10-04 category：Chemical industry standards (HG)+ View
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