09
2023-08
供暖用聚氨酯保溫鋼(gāng)管是由鋼(gāng)管、玻璃鋼(gāng)内護套、玻璃鋼(gāng)外殼構成,其特征是:還包括耐高溫絕熱保溫層(céng)、潤滑層(céng) ...
11
2023-08
聚氨酯保溫鋼(gāng)管靜(jìng)水試探:每根鋼(gāng)管應做靜(jìng)水壓試探而無滲漏景象,試探壓力按下試盤算P=2ST/D式中S— ...
21
2023-08
供熱聚氨酯保溫鋼(gāng)管由運送介質的鋼(gāng)管,高密度外套管,和鋼(gāng)管和外套管之間(jiān)的填充的聚氨酯硬泡保溫密切融合而 ...
15383177997
13633375200