China Plastics—Polybutene( GB Standards Search Result

and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within 1~3 days.
2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days .


	GB/T 37199.1-2021 Plastics—Polybutene(PB) moulding and extrusion materials—Part 1：Designation system and basis for specifications 塑料聚丁烯（PB）模塑和挤出材料第1部分：命名系统和分类基础 - 中英文版
	GB/T 37199.2-2018 Plastics—Polybutene(PB) moulding and extrusion materials—Part 2：Preparation of test specimens and determination of properties 塑料-聚丁烯（PB）模塑和挤出材料-第2部分：试样制备和性能测定 - 中英文版

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