... After special treatment, to prevent mildew, permanent use4,High temperature and low temperature resistance, corrosion resistance, anti-bending, anti-fall ... 105, Φ107, Φ112, Φ121, Φ122, Φ150 models for customers to choose ,and we will design new mould per month.Our products apply ... the detail drawings .For performance, we offer air flow and noise design according to customer requirements.In China ,We ...