GB/T 39802-2021城镇供热保温材料技术条件标准
英文:Technical requirements for thermal insulation material of urban heat-supplying GB/T 39802-2021介绍: 国家标准《城镇供热保温材料技术条件》由...
英文:Technical requirements for thermal insulation material of urban heat-supplying GB/T 39802-2021介绍: 国家标准《城镇供热保温材料技术条件》由...
英文:Electrofusion welding sleeve(tape) for thermal insulation pipeline GB/T 40068-2021介绍: 国家标准《保温管道用电热熔套(带)》由TC455(全国城镇供热...
英文:Prefabricated directly buried insulating pipes and fittings with polyurethane foamed-plastics and high density polyet...
英文:Pre-insulated composite plastic pipes with polyethylene casing GB/T 40402-2021介绍: 国家标准《聚乙烯外护管预制保温复合塑料管》由TC455(全国城镇供热标...