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HG 20528-1992 Socket ring loose sleeve steel pipe flange for lined steel pipe
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This standard specifies the type, size, technical requirements and relevant use regulations of socket ring loose steel pipe flange
2025-01-31 category：Chemical industry standards (HG)+ View
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HG/T 20525-1992 Heat transfer calculation and design regulations for chemical industry tubular furnaces
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HG/T 20525-1992 Chemical Industry Tubular Furnace Heat Transfer Calculation and Design Specifications HG/T20525-1992 Standard Down
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20521-1992 Chemical Steam System Design Regulations
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This regulation refers to the entire thermal system of an enterprise that uses thermal energy as heat and power, and is not applic
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20553-1993 Series of sizes for seamless and welded steel pipes for chemical piping
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HG/T 20553-1993 Seamless and welded steel pipe size selection series for chemical piping HG/T20553-1993 standard download decompre
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20552-1994 Chemical water treatment design and calculation regulations for chemical enterprises
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This regulation applies to the process design calculation of chemical water treatment equipment in newly built, expanded or rebuil
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20550-1993 Spherical compensator configuration design regulations
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HG/T 20550-1993 Spherical compensator configuration design regulations HG/T20550-1993 standard download decompression password: ww
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20549.5-1998 Technical regulations for piping layout design of chemical plants
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HG/T 20549.5-1998 Technical Specification for Piping Layout Design of Chemical Plants HG/T20549.5-1998 Standard download decompres
2024-10-04 category：Chemical industry standards (HG)+ View
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HG/T 20549.4-1998 Design conditions proposed by the chemical plant piping layout profession
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HG/T 20549.4-1998 Design conditions for pipeline layout of chemical plants HG/T20549.4-1998 standard download decompression passwo
2024-10-04 category：Chemical industry standards (HG)+ View
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