Class 150 Bronze 5K Gate Valves Open Close Indicator ມາດຕະຖານການທົດສອບ: JIS F7400-1996Test Pressure: Body-1.05Mpa, Seat-0.77Mpa Main Material: 1-Body: Bronze (BC6)2-Bonnet: Bronze (BC6)3-Disc: Bronze BC6)4-ລຳ: ທອງເຫລືອງ (C3771BD)5-ແກັສເກັດ: NBR ຫຼືບໍ່ແມ່ນຢາງຫີນ6-Handwheel: ເຫຼັກກ້າ (FC200)