GB/T 6556-2024 Chinese PDF (GB/T6556-2024) GB 5908-2024 7-2024_Chinese: Plastics piping systems for

7-2024_Chinese: Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks - Part 7: Lining with spirally-wound pipes (Chinese: 地下无压排水管网非开挖修复用塑料管道系统 第7部分：螺旋缠绕内衬法)

English versions: GB/T 30330-2023

English versions: YY/T 1944-2024

8-2024_Chinese: Anti-counterfeiting printing ink - Part 8: Altering-proof anti-counterfeiting printing ink (Chinese: 防伪油墨 第8部分：防涂改防伪油墨)

English versions: GB/T 23229-2023

GB/T 6556-2024 Chinese PDF (GB/T6556-2024) GB 5908-2024 7-2024_Chinese: Plastics piping systems forGB T 6556 2024_Chinese: Type, main dimension, material and marking of mechanical seals (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 6556 2024