GB/T 2550-2007
Gas welding equipment - Rubber hose 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 20779.2-2007
Rubber for electric power safety - Part 2:Rubber for cable accessories 电力防护用橡胶材料 第2部分:电缆附件用橡胶材料 |
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