All external casting surfaces of the pump/motor coming into contact with the pumped liquid shall have a surface cleanliness equal to that of a SSPC-SP6 process prior to being factory protected by one (1) coat of an environmentally-safe machinery enamel co
All external casting surfaces of the pump/motor coming into contact with the pumped liquid shall have a surface cleanliness equal to that of a SSPC-SP6 process prior to being factory protected by one (1) coat of an environmentally-safe machinery enamel co
所有将会与泵吸液体接触的泵/电机外部铸件表面都应该具有符合或优于SSPC-SP6标准的表面清洁功能，在出厂前就采用高度实心物质进行机械式搪瓷涂层、具有环保作用的一层涂层。