This standard specifies the basic requirements of statistical methods for heating operation data, heating enterprise information, basic information of heating facilities, business operation data of heating enterprise, heating operation data and rural heating data.
This standard is applicable to the statistics on heating operation data of civil buildings, industrial buildings and industrial production.
定价: 1164元 / 折扣价: 990 元 加购物车
This document specifies the construction, classification and code,marking, general, requirements, test methods, inspection regulations, sign, transport and storage of pre-insulated composite plastic pipes with polyethylene(PE)casing.
This document is applicable to pre-insulated composite plastic pipes with polyethylene(PE) casing used in heating and cooling system.
定价: 1164元 / 折扣价: 990 元 加购物车

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