This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.

讨论了二氯甲烷替代氯甲烷进行软质聚氨酯塑料的生产。

Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method

塑料.非塑料的密度测定方法.第部分:浸渍法、液体比重瓶法和滴定法.

A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .

苯酚与甲在碱性条件下经加成、缩合制得可发性酚树脂，该树脂和表面活性剂、发剂、固化剂起发即得酚塑料。

The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.

简要介绍了塑料保温、密封、防水的拱形彩钢屋面的特点、构造、材料、设备、施工工艺、生产成本和应。

This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.

讨论了用二氯甲烷替代一氟三氯甲烷进行软质聚氨酯泡沫塑料的生产。

Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method

塑料.非泡沫塑料的密度法.第一部分:浸渍法、液体比重瓶法滴法.

A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .

苯酚与甲在碱性条件下经加成、缩合制得可发性酚树，该树面活性剂、发泡剂、固化剂一起发泡即得酚泡沫塑料。

The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.

简要介绍了用泡沫塑料保温、密封、防水的拱形彩钢屋面的特点、构造、材料、设备、施工工艺、生产成本应用。

This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.

讨论了用二氯甲烷替代一氟三氯甲烷进行软质聚氨酯泡沫塑料的生产。

Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method

塑料.非泡沫塑料的密度测定方法.第一部分:浸渍法、比重瓶法和滴定法.

A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .

苯酚与甲在碱性条件下经加成、缩合制性酚树脂，该树脂和表面活性剂、泡剂、固化剂一起泡即酚泡沫塑料。

The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.

简要介绍了用泡沫塑料保温、密封、防水的拱形彩钢屋面的特点、构造、材料、设备、施工工艺、生产成本和应用。

This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.

讨论了用二氯甲烷替代一氟三氯甲烷进行软质聚氨酯泡沫塑料生产。

Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method

塑料.非泡沫塑料密度测定方法.第一部分:浸渍法、液体比重瓶法和滴定法.

A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .

苯酚与甲在碱性条件下经加成、缩合制得可发性酚树脂，该树脂和表活性剂、发泡剂、固化剂一起发泡即得酚泡沫塑料。

The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.

简要介绍了用泡沫塑料保温、密封、防水拱形彩钢屋点、构造、材料、设备、施工工艺、生产成本和应用。

This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.

讨论了用二氯甲烷替代一氟三氯甲烷进行软质聚氨酯泡沫塑料的生产。

Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method

塑料.非泡沫塑料的密度测定方法.第一部分:浸渍法、液体比重瓶法定法.

A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .

苯酚与甲在碱性条件下、缩合制得可发性酚树脂，该树脂表面活性剂、发泡剂、固化剂一起发泡即得酚泡沫塑料。

The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.

简要介绍了用泡沫塑料保温、密封、防水的拱形彩钢屋面的特点、构造、材料、设备、施工工艺、生产本应用。

This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.

讨论了用二氯甲烷替代一氟三氯甲烷进行软质聚氨酯泡沫塑料生产。

Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method

塑料.非泡沫塑料测定方法.第一部分:浸渍法、液体比重瓶法和滴定法.

A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .

苯酚与甲在碱条件下经加成、缩合制得可发酚树脂，该树脂和表剂、发泡剂、固化剂一起发泡即得酚泡沫塑料。

The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.

简要介绍了用泡沫塑料保温、封、防水拱形彩钢屋特点、构造、材料、设备、施工工艺、生产成本和应用。

This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.

讨论了用二氯甲烷替三氯甲烷进行软质聚氨酯料的生产。

Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method

料.非料的密度测定方法.第部分:浸渍法、液体比重瓶法和滴定法.

A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .

苯酚与甲在碱性条件下经加成、缩合制得可发性酚树脂，该树脂和表面活性剂、发剂、固化剂起发即得酚料。

The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.

简要介绍了用料保温、密封、防水的拱形彩钢屋面的特点、构造、材料、设备、施工工艺、生产成本和应用。

This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.

讨论了用二氯甲烷替代一氟三氯甲烷进行软质聚氨酯的生产。

Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method

.非的密度测定方法.第一部分:浸渍法、液体比重瓶法和滴定法.

A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .

苯酚与甲在碱性条件下经加成、缩合制可发性酚树脂，该树脂和表面活性剂、发剂、固化剂一起发酚。

The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.

简要介绍了用保温、密封、防水的拱形彩钢屋面的特点、构造、材、设备、施工工艺、生产成本和应用。

This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.

讨论了用二氯甲一氟三氯甲进行软质聚氨酯泡沫的生产。

Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method

.非泡沫的密度测定方法.第一部分:浸渍法、液体比重瓶法和滴定法.

A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .

苯酚与甲在碱性条件下经加成、缩合制得可发性酚树脂，该树脂和表面活性剂、发泡剂、固化剂一起发泡即得酚泡沫。

The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.

简要介绍了用泡沫温、密封、防水的拱形彩钢屋面的特点、构造、材、设备、施工工艺、生产成本和应用。