18649927796
當前位置:> 供求商機> Hillesheim閥門加熱器H8407-006-12-T3-B9N1
Hillesheim加熱器是由德國Hillesheim公司專門開發和生產的一系列高質量加熱設備。以下是對Hillesheim加熱器的詳細簡介:
國家與品牌:Hillesheim公司位于德國,是一個以開發和生產電加熱管和示蹤加熱系統為核心的品牌。
生產與技術:該公司擁有3000平方米的生產制造和庫存空間,技術水平位于德國的先進行列。注重與客戶的緊密合作,基于三十多年的應用實踐,不斷地開發和生產加熱設備以及特殊的應用方案。
資質與認證:Hillesheim公司經過DIN ISO9001認證,確保了其產品的可靠性和高質量。可靠性和快速的交貨是毋庸置疑的,這證明了其經過認證的資質。
種類豐富:Hillesheim加熱器產品線豐富,包括加熱軟管、工業加熱管、加熱器、加熱帶、加熱墊、加熱套、防爆加熱器、電熱帶、加熱板等多種類型。
應用廣泛:這些產品廣泛應用于各種需要加熱的場合,如工業加熱、實驗室研究、醫療設備、航空航天等領域。
定制化服務:Hillesheim公司注重與客戶的緊密合作,可以根據客戶的具體需求提供定制化的加熱解決方案。
主要產品:加熱軟管、工業加熱管、加熱器、加熱帶、加熱墊、加熱套、防爆加熱器、電熱帶、加熱板等。
主要型號:包括但不限于HBR-ILS-60-2-NF、KF-120、CA-100、H 100/H700/H200/H800系列、H 900系列、H 300系列、H 300 A系列、HAF系列、HMI系列、SIM系列、Type HIL-SS、Type HIL-IC、Type HA-HT、Type HA-HKT等。
高質量:Hillesheim公司始終堅持高標準的質量控制,確保每一臺加熱器都能達到最 的性能和可靠性。
快速交貨:公司擁有高效的生產和庫存管理體系,能夠快速響應客戶的需求,確保及時交貨。
專業服務:提供全 位的售前咨詢、售中技術支持和售后服務,確保客戶在使用過程中能夠得到及時有效的幫助。
以Hillesheim加熱器HFH1177-I1為例,該型號加熱器具有特定的技術規格和價格(價格可能會因市場波動而有所變化),適用于特定的加熱需求。
綜上所述,Hillesheim加熱器以其豐富的產品線、廣泛的應用領域、高質量的產品和專業的服務贏得了市場的廣泛認可。無論是需要定制化加熱解決方案的企業客戶,還是尋找高性能加熱器的個人用戶,都可以在Hillesheim找到合適的產品。
穗鋮(廈門)科技有限公司,致力歐美日韓進口工控產品服務商!
穗鋮優勢品牌:
久茂Jumo溫度變送器 施邁賽Schmersal傳感器
蘇克SUCO壓力傳感器 德國EGE流量傳感器
寶德Burkert閥門 哈恩庫博HAHN-KOLB工具
雄克Schunk夾具 SMW-Autoblok夾具
吳QIUQIU 4-8-1-8-3-4-0-0-9
其他歐美進口工業品牌,疑難備品備件國內優勢供應,歡迎咨詢確認!!!
百分100原裝供應Hillesheim閥門加熱器H8407-006-12-T3-B9N1 百分100原裝供應Hillesheim閥門加熱器H8407-006-12-T3-B9N1
2916296 |
SXMPI-30-IMP-SCB-PC-2XM12-5 |
XKMA991 |
330180-90-05 |
PSU 6000-EU |
602030/02-026-095-25-1000-20-10-6-20-00-0 |
3SV9274 |
MRK 10065, installation method right |
975641 |
"OMEGA Engineering, P/N: PX613-300G5V, General Purpose Pressure Transducers with Adjustable Zero & Span" |
WINDSOCK\brand: ORGA\Manufacturer part number: HWC2000EX-MKII\Device name: NAVIGATION LIGHTS\Device model: EVX4070 |
ELEMENT, FILTER, PUTSCH, PN 9-PP05-2, MODEL: 9-4-21-30-90-1-27-20, SPARE PARTS FOR ULTRAFINE FILTER STATOR COOLING WATER |
WD100V |
1FK7101-5AZ91-1ZZ9-Z S07,SN:YF AN50 8841 78 012 ,Art-Nr:0000119767 , REV-NR:04 |
ROTARY SHEAR1850 X 69 X 30 UPPER BLADE 1.2631 56/58 HRC |
64T5 HO 4P SE 145W |
354.0481.1 |
OCD-CAC2B-1210-C100-H3P-062 |
MRG 3C2 B3 N.10001696 i=11.43+3FMA100LA4B5 N.13001932 |
NV200 brass G3/4 200037-009 |
2FRE6B-22/16QK4MV R900936636 |
V825240704 44003 |
07212-10 |
KHB-G-1/4-1112 PN500bar |
P-211Z-200 |
071330441 |
Servo motor power cord; 9600376 |
GUDEL TOOTHED WHEEL M4 Z17 B40 SL-193926 |
6SL3964-6KX00-0AA0 |
SZ 8040.13 x 076 (0B) |
750.000.68 |
600100 |
9M202AGA7070 |
RBE06.1151/IC/45/FB/VD/JC/OD |
PP E02 022 AT |
AGP-2304-M |
3517 CR |
42.00011578 |
DRG N.12769 060/0-ITEM NO.6 DISK OD : 705MM, MAKE MODEL/BRAND:FAV412 VS-III-2010 |
235 I-A-N-SiMac-SL-CVT(for XYZ) |
6206460 |
SP007440 |
(250KAPP)0.760.67.869.00 |
55.34.8.048.0040 AC48V 7A 250V |
multifan 4354 24vdc 4.0w |
800136442 |
21HT4KOY160BDA (220V AC) |
55854+77;Firing circuit PC boaro model 2025;Ser:XK-20-1022347 more in picture 12 |
VKVS54/26-140T, IP54, three-phase, 1.5kw, S1, 17150/min, cosf 0.85, 7.0A, 200YV, 300Hz, 2*155C |
VDE 0530 5 - Mot Typ – 9SG4-147 Nr B5 1.1kW,1455rpm |
374932 |
W000961 |
264DR.F.S.R.R.R.B.1...........B2/C1/S264F.H.R.B.D.F.H.B.E.S.1/S264F.L.R.B.D.F.H.B.E.S.1 |
EZ7001 |
MLD40-120 |
OMNI-P1-010RK008IS |
RAE FGM-2002 |
2.0400H3XL-B00-0-M |
91813,REDIS-220-BP32 |
AP9640 |
DC |
P30701/5 IGMF 05 GSP/5meter Kabel |
PQ96C 1300KW 24V RANGE:4-20MA;SCALED:0-1300KW |
DTL-C55PA-TMS-619-506 |
E476A |
V3LT-03Z+03Z-A99,5300002027 |
8.9080.4231.3001 |
DMP-331-110-1602-1-5-100-500-1-00R |
4506 PT100 simulator adjustable temprature values:-100…+500, connection: 4wire,EN 60751 |
NR.:13252896;NR:2113MD82321 |
N0365 ST ZN FKB5X10 15930 |
PBMN23B15AA14441212000 |
Model: 99150-0604, red product name: red plastic water pipe brand: Eisele, quantity: 100 meters |
40015585 |
L01-IER DNGW-132MS-06-1MD5135-1BD11-4CA1-Z |
GR 63X55 Nr.:8844202560 |
3 Collector cell for EL-FI 5000 D SN:21501340 |
S245 B-3/4 INCH 1021 |
IGFW 30251 |
U36D 85℃ 160V 47000UF |
125431 |
Circle the part for(710663 AGGR. RA 1M00/21/0001AF07) ;more in picture |
DUST 80/75 QS PN80-33 CH-8126 |
RT05 AB/RITORK |
Dometic TropiCool TC 21 tragbare thermo-elektrische Kühlbox/Heizbox, 20 Liter, 12 / 24 V DC/ 220 - 240 Volt AC für Auto, Lkw, Bo |
APE 3C 4 |
0710-008 BFS-10-N-G1/2-MS-NO-ST |
WAVERUNNER 8108HD LECROY 1 1GHz, 8 Ch, 12 bits, 10 GS/s |
13434-500 |
Repair kit for FNC-100-1200-PPV-A |
UNDK 30U6113/S14 OUTPUT 0-10V |
462010 5 |
SA87/t DV132S4 |
SSK GR.38(P45T-I)10778-06 |
A13839-01 |
50028488 |
QP77X19X6.35 |
Blase 4L78-14UNFVG5 NBR20P460 |
39124813 |
6SL3055-0AA00-5DA0 |
19202-04140 |
A5E47258767002 |
LSN-097-0510-030-560/T1;11773052;more in picture |
A12895-02 |
T.u.S. EFA-TRONIC |
S10 |
Exchanger HEAT EXCHANGER,14.5 M/H,-100 ~ 150,313Lx113Wx91.5H,[CB30-34H (14438)],SUS 316,FOR IMS X-RAY THICKNESS GAUGE WATER COOL |
3SKG160M-2A 380V 11kW F IP55 2945r/min |
WB12- 3500-11-A-L05 -M12A5-BAB1 |
s7002-030-028,CAM-follower for mod:652.S1 |
304-S3-PP-8T |
DMV-DLE 5100/11 DN100 |
C25GNY8 |
RPE15-TF3000P-TYT10 |
GBS 500H-60 66404 |
IDP10-TS1C03E-M2L1B2A3 |
BURPMGC20+E70.0+PM |
SH-7904 100/056-0625/86 |
HC-SI-100-5x20 |
Kum Oh Type:Am-06N Alarm Monitoring 24V Dc |
HEB_BLZ400-2-80_50_10(25)-206_M1_S29_mit 6-kant |
ST/POM/N PN500 DN 12 M8 12,9 |
6ES7194-4CA00-0AA0 |
GB5-01-KZS1420-24V-1K-DE4 |
MKEN 1060 S/N 24650 00701515 W34ML |
CKCBXCN |
TN8450496 |
FFA 51-5/60.3 × 12.5 NBR+carbon steel galvanized 1901913G |
PLGA0930060A |
CPU 315SB;315-2AG12 |
0150-3095,PLM01-28-MK - Mounting Kit for 28 mm sliders |
DEWESOFT-OPT-FFT-ANALYSER |
AHGD2E100F |
B27583232 |
DMP4065SQ-7 |
E2E2-80-320-750-003 320N |
91810120017 T11/6 NHK 310610005 |
3504/CC/VII/1/XX/1/X/XXX/G/D4/XX/XX/XX/XX/XX/Y2/XX/XX/ENG/ENG |
NJ4-E2SK |
L.: 3051S2CD2A2B12A1BD1M5 |
Thermal overload realy, 2.5-4A,LR2-D1308C |
C-BOCCOLACIRCOLARE C0320020026 |
LF-90B-S89A 900P/REV |
Upper seal cover NBR TYP A 560x610x20 DIN 3760 |
67300 |
Hydraulic control check valve; SDV-SV10PA2/carbon steel-EPDM |
BETA 50-C-ZRS-20AT5-E-110-2560-2850-AK-AZ1-10BL-0 |
382594.0020 |
F3 |
SAW4 2446 |
EQ 72 K MB:5/10 A |
PFTL 101 A 2.0 with cable |
TACY6Y6 |
ANGLE EXACT ION 60一120/CA3607031919 |
PS150 5K-CO FIAMA |
200.406.01 |
10-4-EPVO 20NH-4R02.32.66.99 |
K1089.46012Х50 |
Angle Valve DN40PN25 961325 |
GS38 64ShDH-GS |
0017-190;sn:1606; 0501 331 618 |
G1/4 620.01.201.21 |
TSG912X22L22-DC220V |
SH6.150.05 |
13293924 |
DDp 20+ |
MNR911319324,MSKD61C-0600-NN-S1-UPO-NNNN |
A13430-00 |
VT 3002-1-2X/32D |
LR 110L TS580J |
143-211-000-022 |
DFS-8552 |
D020AA00 |
Kieselmann 4200080100-022 |
MVSI 15/550-S02 |
46958844;BER 42-48V |
BN 1392 M8-20 |
WDR 22 x 30 x 4.5 B-SF FPM V2A 6.0 bar |
PG7024-07 |
VW chisel,7,9 mm wide,r =0,16 mm art.no.00-003605 |
UKTM 712-2-T-CN-01 8040010712 |
ASA 86A 70 101LA4-BRG40-FL;more in picture |
RTE0T00020KCE00000R |
LMGZ313.25K.80.H15 25KN |
5181407T7-B |
E3T-ST14-M5J 0.3M |
Kopfplatte 800 radial dichtenKD25/GA4/TD/SWG/ 33231672 |
G620 40D 8181411/N+PN16 DN40 |
GHG4118101R9137,EMERGENCY STOP SWITCH, MANUF: CEAG, NOV CWS-P CATWALK SHUTTLE |
SBI15-710L-B (G=25) |
Sample Gas Cooler EGK1/2 |
LC185/10nm ML740mm ID:689697-07 |
MLG V032.706 |
20564 FOR VZF 40 FL 130/25, SERIAL NO: 4956873 |
192A.16CPE |
90036654;ventil-set PP-GFK DN8 |
1058174 |
BES Q05AC-PSC15B-EP00,3-GS04 BES04FH |
8619 multicell 12-36V 2A -10-60℃ Modbus TCP 00570971 |
6739-5005-V501 503838 |
655290 650 |
Machinery Seal for (KTS32-48-T-G-KB) |
219850 |
R000035395 |
3713E1125G with 5m data cable |
F00K102584 |
CAB-LAS8/702FEM |
004 |
VM7GNX-CFS6-014-AC-LE-DSCB-4X/HN |
TYP 1059 Nr.4021 109-F461001 |
DRS 250-NA-D-65-K-X-X |
61M2P0800075 |
42.0001.3586 |
052651 |
YT-3400LDE3420L |
Evolis 59180 |
ZE YW50 HM LWM |
nach heutiger DEL.-Notierung |
48G409 |
BOV3250AV2 |
01-2050-610 S 1,690 |
KSMX106B1USB-WLED |
BTS2048-VL-TEC |
21375&AF25&25*25*100 |
4202504820 |
HENO25 |
FSV2P20A0T65B ;SER.NO:2400004834;more in picture |
BOS00WL BOS 12M-XT-LS11-S4 |
Typ:6737-split 640*690*205 |
K-C16A2-S-C3-30-AI1/21-20-N-N-N |
5.4033.35.041 |
PAB30A209 |
1034761 |
667119 |
274751 |
KTR400 300×375 B=197;400360N·m |
MRS1001 |
402270/0001 H K21R 315S 4 LL TPM IGR HW |
MRW 500 - 0° - 293 |
KDS2/40-4-14 |
XCS-Z03 |
00538412 |
Bestell-Nr.: 108534 - 62 Hst.-Teile-Nr.: 108534 |
Brake wheel cylinder FTE S6511 (37727) |
V2 40 BR2 A10 T12 30 |
MiniAir64 Mini 20 m/s 95.0353 |
Verpackung |
120001- 141;141 BE+BE 22,475 long |
Whip check, King safety 3/8"x44", 4" hose (200PSI);WA4 |
\Parts No.039974 3/2BAV-025-06-IIN-NNEN-25+036619 |
18.1622(ME3-36+PE-SP1,5/0,5-1,5) |
3244 type three-way electric valve; flange DN: 80 mm pressure 16 |
MLPF128-60 Id:298403 |
750-493 |
E0800151 |
4WE10Y5X/EG24N9K4/M |
V0R-015WA0080 |
6ES5441-4UA12 |
VXLE 3B pn:8015132 sn:11191114 |
1105281 |
FLEX-HR2VE-ITLO + HR2VE-040GM160 |
00192323 |
MT-DD Qn 2.5m3/h DN20 J=0.1L T30℃ |
L225WK |
44.0001.1473.Z |
type:DGK 71/4/LL;SNr:38119 more in picture 14 |
GNM3150-G2.6 SN: 4699352 |
SP0293J732;SN:193362;Howmet item:G48119739 more in picture 1 |
W061/20.08-03 |
2600T 266DSHHSSA1A7 L9B1TB -100kPa-100kPa 21MPa |
CD12 88970043 |
SI-CON11 |
art no:10422506 25*6mm ---40m |
9MISTG20TGN030 |
Sommerstil Elaflex Slim Line SL 21 16 mm |
400300-11001466 D80 |
BM5573 |
GXJ 1160 D82 |
15007 |
222580 |
99135 |
AG06-0006 |
HA-VIS ECON 3080B-A-PP |
Typ 2012 / Artikelnr. 146310 |
1.2 – 12 Nm |
WT6SE7-160L16DSAIQ2 |
3031322 |
296836 |
95180-2208 |
RTKLMTIIL024 |
FPS2800B12C4 Part-No:FPP800A110 |
CFROBOT2.07.18.C |
MP321 24V AC/DC 0,1A 50E3 20 T 70 |
K63-206-R.0 |
SSDS85ES0000 |
CID-48V |
HMT120 KB0A0E12A1A0A |
7010/015W101120G1/2 |
LAD-4RC3U |
373 848-01 |
mt12 243602-06 |
Large carbon brush |
PE-50-P04H-50M |
4.045.836 |
601/0801628071 |
Typ:6737-split 390*440*59 |
9973566288/00130001 (Amamix C 6325/612 UDG) |
202560/20-888-000-310-310-30/000 |
type:RZ 166;serail no:AZ/8190 |
SAMSOMATIC 3962 |
0.03cm3 FKM 321-403G7-S8 |
WFS-01 |
AF16 1426-3131-0801-03 |
GS110TP |
805-122-561 |
ATM.1ST.1.1100.0146.23.U |
RMG 4015 4015.003 |
CLP/3KN |
PART NO. HTD-ZR 624-8M-15 |
NCS-11/PNP/KF/M12 |
17-1776 |
Ultrafiltration membrane bottom blockage UFDD |
DN15,PN16,flnz,SALNK UPL 12.006 |
BHC01\ FOD |
IMM63B |
MC79P 50*25*16 |
6200TBA |
P3YPA98BD2VA2A |
HD11010-5A |
ball149F010711/149B3204 |
R120-08J2 G1 |
634.210.75 |
PN:21(41-12-082-0-00-3-0) |
3P(380V)1.1KW |
SCH6-SAL10/12 2783894 |
1014395 |
7000-40021-8463000 |
SVS0630 |
4.403.502.313 |
R347602403, 10706 |
04.00995.0184 |
835002 |
11201450 |
A09 Nr:11.106071.1001 |
B0014674; EM1045;FE; 4.13; A.D.EATON 6K |
B104675 |
HD67608-A1 |
TSG912X22L22,220VDC HASV402552P0001 |
IT65-H-5000ZCP4CR S/N142400605 |
SP003507;more in picture |
VRDM 5910/50 LNC |
A-1220 Vienna, Lieblgasse 7 |
DS21060A22BK0W00 |
COS61D-1020/0 COS61D-AAA1A3 |
100008645 5m |
G10-23-120-1-342-AR16AR16-600N |
CXM40-250 |
seal kit,FOR PZB+160-1 |
7SJ6111-5EB41-3HA0 |
3000205605070 |
DSP 3HS11 |
M22-ES-SA |
SOCKET HK6S 3-3312.0095 |
AE4_MA |
SAB 40 NBR-60 G3/8-IG Part no.: 10.01.06.00924 |
1FG1103-1PE34-2HM1-Z |
NEMA 4;more in picture |
TS8901.920 |
339275 |
TS111-AA11AA11111AB1X11A J3011714053 PT100 250mm |
pump the data is in the attachment |
DPF20-HV |
FB05 AIMANT TYPE PLOT DOUILLE TAURADEE D16 M4 |
SPS-3-GY-T8 |
ST7426 30x072 |
CTI-750/202756 |
XTRFY M4 |
HF112MC4 B5 5.5KW IP55 |
R2E250-AL05-16 230V 60HZ 310W 3000MIN-1 5WF 400VDB CRIS M2E068-GA |
1014010420 |
SAUG-SCGS 20 SI-HD |
616511416053 |
E22010011 |
4.075.123.630 |
103 Mod CONVERSION KITS,WCIQ82979 - AUX POWER PCB(WD 105b1010.IQ + EXT PWR CPT + AUX PWR +INDICATION |
TPE99-2 |
4204030145 |
OMK-S 49020202 OMK-S 420*390*14.5 |
2218992 |
DM 7000H |
EWD330 Service KIT.2901063300 |
PTC-SET-TUBE |
4.036.319 |
417785 SLP8-2-M |
7011-50/8-01-0253-2001-25/005-058 |
boltcut 888100/1-6 |
Serien-Nr:41823;Beta-80-SOS-M-2550-3238-4080-6SA-1 more in p5 |
LFC 120 ML05 T 60/Z 15810131/B14.03/88322 |
MEC04-10926 PS-SEAL 2299582 |
4000-68113-0000000 |
MJV-2;valve |
SJ12-M18MB76-DP?-V2 |
Brake Drum ? 250 x 95 D1=250mm D2=40mm S=12mm |
502160/800B |
Einschraubtiefe Depth of screw Profondeur de vissage max.5 mm 59755 |
AKGD2V100F |
SLR16 |
S7-M |
E94ASHE0134 |
NH2GG50V400 400A (N21108314) |
N1-3100-1010 |
VARIO-HP 2-2,Auftragsnr:4002908 Seriennr:400290804 |
K53W2S918-CS02400 24V 2.4W |
LSH3 SYSTEM HOUSING PD0066830-010 10006 |
BUHLER MPSJ 22/22-LP-TK1 |
VKG-2206R0R20;switch |
K-1107 |
13417300 |
RFH750;270OHM;1,5KW |
Item-Nr:103169517 DN315mm; U-shaped pipe sealing |
NM 10054 78361 |
6SN1145-1AA00-0AA0 |
495-131-092-00 CC-000-36C-106000/003_013 |
25000197 |
ZXM 411.3-3100e,WP376921; more in picture |
FD0040-NM00CWALTN-L14SKA-00XX |
033811N-4018 |
3SU1401-1BB60-3AA0 |
RSP 24 Thickness::41mm |
AUX-0100 |
10B 1 COND: 5 |
70x2-15--248- E=10 ROLL Dia. 70 |
M001157 |
70/00341311 |
TK561.FRE.400.11/30.SK.4.10.L07.PP2-1130.X447 |
ZDR6DP1-4X/25YMJ3 |
0460-010-20141 |
Spare parts (figure 1+figure 2) |
Artikelnr.: 95010590, ID: 393000-15 |
SI2-U2Z AW R-RAST.601.5736.003 |
DN50 ,DIN2",370M3/H,0-10 ,AP03DA,11.7KG ,SS30,PTFE |
690 20M14 0101 |
42000 |
HMP110C15C0C3B0 |
AG03/1-0067 48-IP65-N/10-A-ABM-PB/F-SW |
EMDR-10 |
784832 |
Flow-Control 3/K 69930 |
6ES79538LF300AA0 |
Gripnotch Belt BX49 |
AK0017020-000-224 |
HP1352M60ANP01 |
HWS600-12 |
FL400A-BB-50 7Z02734 |
Cat. No. B7RMP-2X1 (9634003882) |
4,051,127 |
603031/70-2-067-00-1000-40-10-00-00-000-00-6/574 |
QUINT-PS-100\240AC\24DC\20 |
C1220B,207947 |
MINI01D/C1000-15-85(8-2001-PC01) |
11090101 |
K-U9C-01K0-05M0-Y-S |
110.366 26.11.18 17:48 01 |
A4D300-AS34-11400V 68/90W0.14/0.15A |
0.327830.D |
082054 |
HD1KO-025GM060-768 |
833559 |
EKH 2500 B 55 55 1 |
bush for EMNLQ 9S-90 |
OWL320 5000N |
BP-S Matic - Ballpoint pen - Blue - Fine Tip |
745836 hermal trip Z186-84°C |
8-101-954-234 |
A226-72 li |
1223.35223.35 |
ME203 |
MKS8 BA50 |=28:8 |
Meister Vit DIA 2A2T 282x27x228.6 X=7 W=3 Vit DIA UF3 Segmented B=2Alu wheel base Working speed Vc max 40 |
343-144400 |
4000-68000-0050000 |
SN:M20219759E;F-201CV-500-TBD-3A-E |
0.0.294.14 |
V200SPI-15-H-R-B8C-PSW-2820(1028)/10mm,Qmax=500000Nm3/h Qmin=150000Nm3/h P=10kPa t=80℃ |
SOGEVAC SV65 B |
MIC 201 32097-2740 |
請輸入賬號
請輸入密碼
請輸驗證碼
以上信息由企業自行提供,信息內容的真實性、準確性和合法性由相關企業負責,化工儀器網對此不承擔任何保證責任。
溫馨提示:為規避購買風險,建議您在購買產品前務必確認供應商資質及產品質量。