GB/T 20854-2025 Chinese PDF (GB /T20854-2025) GB/T 15268-2024 2-2025_Chinese: Plastics - Impact-resistant polystyrene

2-2025_Chinese: Plastics - Impact-resistant polystyrene (PS-I)moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (Chinese: 塑料 抗冲击聚苯乙烯（PS-I）模塑和挤出材料 第2部分：试样制备和性能测定)

English versions: GB/T 13963-2025

English versions: GB/T 17216-2025

GB/T 18414-2025_Chinese: Textiles - Determination of chlorinated phenols and ortho-phenylphenol (Chinese: 纺织品 含氯苯酚邻苯基苯酚的测定)

GB/T 22283-2025_Chinese: Landrace breeding pig (Chinese: 长白猪种猪)

GB/T 20854-2025 Chinese PDF (GB /T20854-2025) GB/T 15268-2024 2-2025_Chinese: Plastics - Impact-resistant polystyreneGB T 20854 2025_Chinese: Corrosion of metals and alloys Accelerated testing involving cyclic exposure to salt mist, dry and wet conditions (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20854 2025