??日本坂口加热管，加热器产品品牌：坂口电热株式会社加热管，加热器产品型号：G8A81 E2A55类型：加热管 测量范围：38--870 允差等级：A 口径1/8 1/4 系列E1A51 E1A52 E1A53 E1E41 E1E42 E1E43 E1E61 E1J39 E1J40 E1J41 E1J49 E1J42 E1J52 E1J35 E2A55 E2A82 E2A56 E2A77 E2A57 E2A50 E2A72 E2A76 E2A83 E3A48 E3A49 E3A60 E3A50 E3A51 E4A28 E4A29 E4A32 E4A30 E4A6 E5A45 口径1/2系列J1A30 J1A31 J1E50 J1E51 J1E58 J1E52 J1J47 J1J48 J1J96 J1J59 J1J38 J2A80 J2A49 J2A75 J2A85 J2A71 J2A95 J2A96 J2A81 J2A82 J2E86 J2E87 J2E56 J2E69 J2E114 J2E115 J2E64 J2E88 J2G35 J2G28 J2G34 J2G37J2G36 J2G38 J2J67 J2J57 J2J68 J2J69 J2J109 J2J110 J2J81 J2J82 J2J66 J2J70 J2N45 J2N43 J3A108 J3A109 J3A107 J3A89 J3A65 J3A73 J3A132 J3A29 J3A110 J3A111 J3A51 J3A127 J3A137 J3A112 J3J44 J3J64 J3J65 J3J45 J3J46 J3J46 J3J63 J4A117 J4A122 J4A118 J4A90 J4A63 J4A26 J4A1 J4A103 J4A139 J4A68 J4A16 等