江苏少妇性BBB搡BBB爽爽爽,久久人妻少妇嫩草av,免费在线观看av,少妇搡BBBB搡BBB搡18禁

Glass Lined Equal Tees,All glass-lined pipe fittings adopt a cold spray process, which requires workers to repeatedly grind and refine the billet and glass glaze powder, and the moisture in the glass glaze powder is naturally dry.

Glass Lined Elbows,The glass-lined tube is sprayed on the surface of the metal-steel blank by a silicon-containing enamel glass glaze. After baking at a high temperature of about 900℃，the enamel glass glaze is tightly bonded to the metal substrate, and th

Glass Lined Straight Pipes,Our productivity and advantages:It can produce DN25?DN2000 glass-lined pipe fittings and tower sections (DN250 and below are generally less than 2000mm; DN300 and above can be up to 4000mm), and related enamel glass accessories.