GB/T 31052.7-2016
Lifting appliances—Code of inspection and maintenance—Part 7: Derrick cranes 起重机械 检查与维护规程 第7部分:桅杆起重机 |
GB/T 25774.2-2016
Test methods for welding consumables—Part 2: Preparation of single-run and two-run technique test specimens in steel 焊接材料的检验 第2部分:钢的单面单道焊和双面单道焊焊接接头力学性能试样的制备及检验 |
GB/T 2550-2016
Gas welding equipment—Rubber hoses for welding, cutting and allied processes 气体焊接设备 焊接、切割和类似作业用橡胶软管 |
GB/T 31052.10-2016
Lifting appliances—Code of inspection and maintenance—Part 10: Series lifting equipments 起重机械 检查与维护规程 第10部分:轻小型起重设备 |
GB/T 32482.1-2016
LED—Binning—Part 1: General requirements and white colour grid LED 分选 第1部分:一般要求和白光栅格 |
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