Specifications and models Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e1#15*10*4cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e3#15*15*5cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e4#18*11*5cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e5#20*13*3cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e6#20*11*4cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e7#20*14*4cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e8#23*9*6cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e9#23*13*7cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e10#23*16*5cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e11#27*16.5*5cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e19#22*15*4cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e21#26*15*4cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); e22#24*12.5*5cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b1#27*18*7cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b2#27*21*6cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b4#30*20*5cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b5#30*20*8cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b6#30*25*8cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b10#36*26*6cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b11#36*26*4cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b15#45*35*10cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b17#36*30*6cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b18#45*35*8cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b21#33*24*4cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b24#40*30*8cm Three layers of hardening (jiangsu, zhejiang, shanghai and anhui); b30#50*40*12cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e1#15*10*4cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e3#15*15*5cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e4#18*11*5cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e5#20*13*3cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e6#20*11*4cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e7#20*14*4cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e8#23*9*6cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e9#23*13*7cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e10#23*16*5cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e11#27*16.5*5cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e19#22*15*4cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e21#26*15*4cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); e22 # 24*12.5*5cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b1#27*18*7cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b2#27*21*6cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b4#30*20*5cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b5#30*20*8cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b6#30*25*8cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b10#36*26*6cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b11#36*26*4cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b15#45*35*10cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b17#36*30*6cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b18#45*35*8cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b21#33*24*4cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b24#40*30*8cm Three-layer extra hard (jiangsu, zhejiang, shanghai and anhui); b30#50*40*12cm Three layers of hardening (other provinces); e1#15*10*4cm Three layers of hardening (other provinces); e3#15*15*5cm Three layers of hardening (other provinces); e4#18*11*5cm Three layers of hardening (other provinces); e5#20*13*3cm Three layers of hardening (other provinces); e6#20*11*4cm Three layers of hardening (other provinces); e7#20*14*4cm Three layers of hardening (other provinces); e8#23*9*6cm Three layers of hardening (other provinces); e9#23*13*7cm Three layers of hardening (other provinces); e10#23*16*5cm Three layers of hardening (other provinces); e11#27*16.5*5cm Three layers of hardening (other provinces); e19#22*15*4cm Three layers of hardening (other provinces); e21#26*15*4cm Three layers of hardening (other provinces); e22#24*12.5*5cm Three layers of hardening (other provinces); b1#27*18*7cm Three layers of hardening (other provinces); b2#27*21*6cm Three layers of hardening (other provinces); b4#30*20*5cm Three layers of hardening (other provinces); b5#30*20*8cm Three layers of hardening (other provinces); b6#30*25*8cm Three layers of hardening (other provinces); b10#36*26*6cm Three layers of hardening (other provinces); b11#36*26*4cm Three layers of hardening (other provinces); b15#45*35*10cm Three layers of hardening (other provinces); b17#36*30*6cm Three layers of hardening (other provinces); b18#45*35*8cm Three layers of hardening (other provinces); b21#33*24*4cm Three layers of hardening (other provinces); b24#40*30*8cm Three layers of hardening (other provinces); b30#50*40*12cm Three layers of extra hard (other provinces); e1#15*10*4cm Three layers of extra hard (other provinces); e3#15*15*5cm Three layers of extra hard (other provinces); e4#18*11*5cm Three layers of extra hard (other provinces); e5#20*13*3cm Three layers of extra hard (other provinces); e6#20*11*4cm Three layers of extra hard (other provinces); e7#20*14*4cm Three layers of extra hard (other provinces); e8#23*9*6cm Three layers of extra hard (other provinces); e9#23*13*7cm Three layers of extra hard (other provinces); e10#23*16*5cm Three layers of extra hard (other provinces); e11#27*16.5*5cm Three layers of extra hard (other provinces); e19#22*15*4cm Three layers of extra hard (other provinces); e21#26*15*4cm Three layers of extra hard (other provinces); e22#24*12.5*5cm Three layers of extra hard (other provinces); b1 # 27*18*7cm Three layers of extra hard (other provinces); b2#27*21*6cm Three layers of extra hard (other provinces); b4#30*20*5cm Three layers of extra hard (other provinces); b5#30*20*8cm Three layers of extra hard (other provinces); b6#30*25*8cm Three layers of extra hard (other provinces); b10#36*26*6cm Three layers of extra hard (other provinces); b11#36*26*4cm Three layers of extra hard (other provinces); b15 # 45*35*10cm Three layers of extra hard (other provinces); b17#36*30*6cm Three layers of extra hard (other provinces); b18#45*35*8cm Three layers of extra hard (other provinces); b21#33*24*4cm Three layers of extra hard (other provinces); b24#40*30*8cm Three layers of extra hard (other provinces); b30#50*40*12cm