接受的付款货币：美元、欧元、日元、加元、澳元、港元、英镑、人民币、瑞士法郎； bitumen emulsioncold bitumen emulsionphoto emulsionemulsion paintstrawberry emulsion flavorasphalt emulsionmake emulsion paintsilicone emulsionwax emulsionzinc stearate emulsioncationic bitumen emulsionpolyvinyl acetate emulsioneva

The "original" contemporary pipe joint, circa 1925; the Mechanical Joint remains in use primarily as a means for connecting fittings, valves, and comparable appurtenances to some pipeline. The coating material is placed on the interior area on the pipe, forming a protective layer that prevents the metal from coming into contact with the fluid or