阀门打开/关闭卡特别15-33 156030

Valve opening and closing tags Special 15-33 156030 [Features] ●Size: 60mm square x 2mm ●Material: Hard vine ●Specifications: Laminated processing, 4mm φ holes x 2, single-sided printing ●Proof of failure of specific chemical substances<br>●(Indication of opening and closing direction of valves, etc.)<br>●Article 15: Business operators must take the following measures to prevent the leakage of Class 3由于阀门或指定化学设备的公鸡或开关，按钮等的操作，物质等。用于操作这些设备。 <br>●1。显示开口和关闭方向。 <br>●2。颜色代码和形状分类。 <br>●2不得仅由颜色代码组成上一段的项目2中的措施。 <br>●与化学物质有关的招牌6