石英砂是石英石经破碎加工而成的石英颗粒。石英石(quartzrock)亦称硅石，是一种质地坚硬、耐磨、化学性质

　　　　聚氯化铝，简称PAC，是一种多羟基，多核络合体的阳离子形象封锁机高分子絮凝剂。固体产品外观为

美国英思科JCB4甲烷检测仪JCB4甲烷检测仪是英思科公司获得中国煤安认证的单一瓦斯检测报警仪.JCB4甲烷检测仪是专门用于矿井检测甲烷，显示气体类型为CH4甲烷，检测浓度单位为%VOL，范围：0.

10W力矩电机:110V4TK10A-AW2J,4TK10A-AW2U,4TK10GN-A,4TK10CGN-A,4TK10GN-AT,4TK10CGN-AUL,4TK10GN-AUL,4TK10GN-AW2J,4TK10GN-AW2U,10W力矩电机:220V4TK10A-CF,4TK10A-C,4TK10A-CW2E,4TK10A-CW2J,4TK10GN-C,4TK10GN-CF,4

10W力矩电机:110V4TK10A-AW2J,4TK10A-AW2U,4TK10GN-A,4TK10CGN-A,4TK10GN-AT,4TK10CGN-AUL,4TK10GN-AUL,4TK10GN-AW2J,4TK10GN-AW2U,10W力矩电机:220V4TK10A-CF,4TK10A-C,4TK10A-CW2E,4TK10A-CW2J,4TK10GN-C,4TK10GN-CF,4

10W力矩电机:110V4TK10A-AW2J,4TK10A-AW2U,4TK10GN-A,4TK10CGN-A,4TK10GN-AT,4TK10CGN-AUL,4TK10GN-AUL,4TK10GN-AW2J,4TK10GN-AW2U,10W力矩电机:220V4TK10A-CF,4TK10A-C,4TK10A-CW2E,4TK10A-CW2J,4TK10GN-C,4TK10GN-CF,4

15W定速电机110V:3IK15GN-AWU,3IK15GN-A,3IK15GN-AW2J,3IK15GN-AW2U15W定速电机220V:3IK15A-C,3IK15A-C2,3IK15GN-C,3IK15GN-CW2J,3IK15GN-CWEG,3IK15GN-CWE,3IK15GN-CW,3IK15GN-CW2,3IK15GN-CW2E,3IK15GN-CW2J15W可逆定速电机110V

6W定速电机110V:2IK6GN-A,2IK6GN-AW2J,2IK6GN-AD,2IK6GN-AW,2IK6A-A2IK6GN-AE,2IK6GN-AW2U,2IK6GN-AWU,6W定速电机220V:2IK6A-C,2IK6GN-C,2IK6GN-CW,2IK6GN-CW2J,2IK6GN-CWE,2IK6GN-CW2E6W可逆定速电机110V:2RK6GN-A,2RK6A-A,2R

6W定速电机110V:2IK6GN-A,2IK6GN-AW2J,2IK6GN-AD,2IK6GN-AW,2IK6GN-AE,2IK6GN-AW2U,6W定速电机220V:2IK6A-C,2IK6GN-C,2IK6GN-CW,2IK6GN-CW2J,2IK6GN-CWE,2IK6GN-AWU,2IK6GN-CW2E

6W定速电机110V:2IK6GN-A,2IK6GN-AW2J,2IK6GN-AD,2IK6GN-AW,2IK6GN-AE,2IK6GN-AW2U,6W定速电机220V:2IK6A-C,2IK6GN-C,2IK6GN-CW,2IK6GN-CW2J,2IK6GN-CWE,2IK6GN-AWU,2IK6GN-CW2E6W可逆定速电机110V:2RK6GN-A,2RK6GN-AW,2RK6GN-A

6W可逆定速电机110V:2RK6GN-A,2RK6A-A,2RK6GN-AW,2RK6GN-AW2J,2RK6GN-AW2U，6W可逆定速电机220V:2RK6A-C,2RK6GN-C,2RK6GN-CE,2RK6GN-CW,2RK6GN-CW2L2,2RK6GN-CW2J,2RK6GN-CW2E,

2IK6GN-C，2GN-15K6W定速电机110V:2IK6GN-A,2IK6GN-AW2J,2IK6GN-AD,2IK6GN-AW,2IK6GN-AE,2IK6GN-AW2U,6W定速电机220V:2IK6A-C,2IK6GN-C,2IK6GN-CW,2IK6GN-CW2J,2IK6GN-CWE,2IK6GN-AWU,2IK6GN-CW2E

QZB自耦减压变压器与同容量的一般变压器相比较具有体积小、结构简单等优点，尤其在变压比接近1的场合显得特别经济。其结构特点如下：节能低噪：采用优质冷轧硅钢片、耐高温的绝缘材质及特殊真空浸漆工艺，使变压器更加节能、更加宁静。高可靠性：结构合理，在质保体系及可靠性工程等方面进行大量的基础研究及可靠性认证，性

15W定速电机110V:3IK15GN-AWU,3IK15GN-A,3IK15GN-AW2J,3IK15GN-AW2U15W定速电机220V:3IK15A-C,3IK15A-C2,3IK15GN-C,3IK15GN-CW2J,3IK15GN-CWEG,3IK15GN-CWE,3IK15GN-CW,3IK15GN-CW2,3IK15GN-CW2E,3IK15GN-CW2J15W可逆定速电机110V

15W定速电机110V:3IK15GN-AWU,3IK15GN-A,3IK15GN-AW2J,3IK15GN-AW2U15W定速电机220V:3IK15A-C,3IK15A-C2,3IK15GN-C,3IK15GN-CW2J,3IK15GN-CWEG,3IK15GN-CWE,3IK15GN-CW,3IK15GN-CW2,3IK15GN-CW2E,3IK15GN-CW2J15W可逆定速电机110V

6W定速电机110V:2IK6GN-A,2IK6GN-AW2J,2IK6GN-AD,2IK6GN-AW,2IK6GN-AE,2IK6GN-AW2U,6W定速电机220V:2IK6A-C,2IK6GN-C,2IK6GN-CW,2IK6GN-CW2J,2IK6GN-CWE,2IK6GN-AWU,2IK6GN-CW2E6W可逆定速电机110V:2RK6GN-A,2RK6GN-AW,2RK6GN-A

6W定速电机110V:2IK6GN-A,2IK6GN-AW2J,2IK6GN-AD,2IK6GN-AW,2IK6GN-AE,2IK6GN-AW2U,6W定速电机220V:2IK6A-C,2IK6GN-C,2IK6GN-CW,2IK6GN-CW2J,2IK6GN-CWE,2IK6GN-AWU,2IK6GN-CW2E6W可逆定速电机110V:2RK6GN-A,2RK6GN-AW,2RK6GN-A

40W力矩电机:110V5TK40A-AF,5TK40GN-AF,5TK40GU-AF,5TK40GU-AFF,5TK40CGU-AF,5TK40CGU-AFF40W力矩电机:220V5TK40A-CF,5TK40A-CF(FOE32),5TK40A-CFF(FOE32),5TK40GN-CF,5TK40CGN-CF,5TK40GU-CF,5TK40GU-CFF,

25W定速电机110V:4IK25GN-AWU,4IK25GN-AWTU,4IK25GN-A,4IK25GN-AW2J,4IK25GN-AW2U,25W定速电机220V:4IK25A-C,4IK25GN-CWET,4IK25GN-CWTE,4IK25GN-CWT,4IK25A-CT,4IK25GN-C,4IK25GN-CT,4IK25GN-CWEG,4IK25GN-CWE,4IK25GN-CW2

40W感应式定速电机110V:5IK40GN-AW,5IK40A-AF,5IK40GN-A,5IK40GN-AW2J,5IK40GN-AW2U40W感应式定速电机220V:5IK40A-C,5IK40GN-CWT,5IK40A-CT,5IK40GN-C,5IK40GN-CF,5IK40GN-CWEG,5IK40A-CW,5IK40GN-CW,5IK40GS-CF,5IK40GN-CW2J,5IK