type 1: DN15 aluminum alloy
type 2: DN15 / aluminum alloy / with temperature compensation
type 3: DN20 aluminum alloy
type 4: DN20 / aluminum alloy / with temperature compensation
type 5: DN25 aluminum alloy
type 6: DN25 / aluminum alloy / with temperature compensation
type 7: DN32 aluminum alloy
type 8: DN32 / aluminum alloy / with temperature compensation
type 9: DN40 aluminum alloy
type 10: DN40 / aluminum alloy / with temperature compensation
type 11: DN50 aluminum alloy
type 12: DN50 / aluminum alloy / with temperature compensation
type 13: DN65 aluminum alloy
type 14: DN65 / aluminum alloy / with temperature compensation
type 15: DN80 aluminum alloy
type 16: DN80 / aluminum alloy / with temperature compensation
type 17: DN100 aluminum alloy
type 18: DN100 / aluminum alloy / with temperature compensation
type 19: DN125 / aluminum alloy / with temperature compensation
type 20: DN150 / aluminum alloy / with temperature compensation
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