The invention relates to ultraviolet screening agent, ultraviolet resistant fabric finishing liquid, and the finished fabric.
本发明涉及一种紫外线屏蔽剂、抗紫外线织物整理液及其所整理的织物。
The utility model relates to a leakage-resistant sealing valve used for controlling, discharging and stopping liquid.
一种防泄漏密封阀，用于控制、开关流体。
The utility model relates to a leakage-resistant sealing valve used for controlling, discharging and stopping liquid.
一种防泄漏密封阀，用于控制、开关流体。
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