lanzhou science and technology successfully developed new water-based polyurethane products
on august 24, the municipal government information office presided over a press briefing, officially announcing that lanzhou ketian health technology co., ltd. had made a major technological breakthrough in the application of water-based polyurethane polymer materials and successfully developed water-based polyurethane ultra-thin condoms. it took the lead in realizing the technology “made in china” and…
