The panel appears to be plastic coated for waterproofing.

面板是塑料涂层防水。

youdao

Sprayed plastic coated outer case is beautiful in appearance and can keep luster long time.

外壳为全喷塑涂层，能长久保持光泽，美观大方；

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Plastic heavy wire mesh of the raw material is coated with a PVC plastic coated wire, plastic coating thickness of about 1mm or so.

包塑重型六角网的原料铁丝是涂敷了PV C塑料涂层的铁丝，塑料涂层厚度大约在1 mm左右。

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Laser disc players use lasers to accurately read or write marks on a reflective,coated plastic disc.

VOA: special.2010.09.01

Methods include plastic-coated windows, energy-absorbing materials and tying down heavy objects and ceiling panels.

BBC: Newcastle engineers research bomb-proof train carriages

The nose's sensors consist of microscopic plastic beads coated in fluorescent dye and perched on the ends of optical fibres.

ECONOMIST: Wine-tasting will never be the same again

During lunch and dinner, customers peruse plastic-coated menus for classic greasy-spoon selections like hamburgers, French fries and club sandwiches stacked high with meat and iceberg lettuce.

BBC: New York City��s classic diners survive